Proceedings of the Academy of Natural Sciences of Philadelphia (Volume 5) by Academy of Natural Philadelphia, 1154224414, 9781154224412 Details

Proceedings of the Academy of Natural Sciences of Philadelphia (Volume 50) by Academy of Natural Philadelphia, 1154342468, 9781154342468 Details

Proceedings of the Academy of Natural Sciences of Philadelphia (Volume 53) by Academy Of Natural Philadelphia, 123571277X, 9781235712777 Details

Proceedings of the Academy of Natural Sciences of Philadelphia (Volume 56) by Academy Of Natural Philadelphia, 1235744957, 9781235744952 Details

Proceedings of the Academy of Natural Sciences of Philadelphia (Volume 6) by Academy of Natural Philadelphia, 1153834456, 9781153834452 Details

Proceedings of the Academy of Natural Sciences of Philadelphia (Volume 62) by Academy of Natural Philadelphia, 1154325164, 9781154325164 Details

Proceedings of the Academy of Natural Sciences of Philadelphia (Volume 70-71) by Academy Of Natural Philadelphia, 1235623874, 9781235623875 Details

Proceedings of the Academy of Natural Sciences of Philadelphia (Volume 71) by Academy of Natural Philadelphia, 1150860421, 9781150860423 Details

Proceedings of the Academy of Natural Sciences of Philadelphia (Volume 72 ) by Academy Of Natural Philadelphia, 1235627950, 9781235627958 Details

Proceedings of the Academy of Natural Sciences of Philadelphia (Volume 8) by Academy of Natural Philadelphia, 1150155515, 9781150155512 Details

Proceedings of the Academy of Natural Sciences of Philadelphia (Volume 9) by Academy Of Natural Philadelphia, 1153101920, 9781153101929 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 109-111 by Academy of Natural Philadelphia, 1130774422, 9781130774429 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 11 by Academy of Natural Philadelphia, 1153102048, 9781153102049 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 11 by Academy of Natural Philadelphia, 1153416786, 9781153416788 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 111-112 by Academy of Natural Philadelphia, 1230207317, 9781230207315 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 111-112 by Academy of Natural Philadelphia, 115482201X, 9781154822014 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 114-115 by Academy of Natural Philadelphia, 1154280594, 9781154280593 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 116 by Academy of Natural Philadelphia, 1154009882, 9781154009880 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 117 by Academy Of Natural Philadelphia, 1154212009, 9781154212006 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 12 , 1149501243, 9781149501245 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 12 by Academy of Natural Philadelphia, 1153101866, 9781153101868 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 120 by Academy Of Natural Philadelphia, 1154309452, 9781154309454 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 123 by Academy of Natural Philadelphia, 1153102196, 9781153102193 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 126-128 by Academy of Natural Philadelphia, 1153416840, 9781153416849 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 128-130 by Academy of Natural Philadelphia, 1153102218, 9781153102216 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 13 by Oliver Davie, Academy of Natural Philadelphia, 1150859016, 9781150859014 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 132-134 by Academy of Natural Philadelphia, 1153416824, 9781153416825 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 139-140 by Academy of Natural Philadelphia, 1130954595, 9781130954593 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 14 , 1149501235, 9781149501238 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 146 by Academy of Natural Philadelphia, 1154242560, 9781154242560 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 15 , 1149501227, 9781149501221 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 16 by Academy of Natural Philadelphia, 1153102102, 9781153102100 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 16 , 1149501219, 9781149501214 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 17-18 by Academy of Natural Philadelphia, 115310217X, 9781153102179 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 18 by Academy of Natural Philadelphia, 1153416646, 9781153416641 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 19 , 1175321117, 9781175321114 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 2 by Academy of Natural Philadelphia, 1153843668, 9781153843669 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 20 by Academy of Natural Philadelphia, 1153102242, 9781153102247 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 21 by Academy of Natural Philadelphia, 1153102137, 9781153102131 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 23 by Academy of Natural Philadelphia, 1153416662, 9781153416665 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 25 by Academy of Natural Philadelphia, 1154125459, 9781154125450 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 25-26 by Academy Of Natural Philadelphia, 1153416948, 9781153416948 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 26 , 1149501200, 9781149501207 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 28 by Academy of Natural Philadelphia, 1153416506, 9781153416504 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 29 by Academy of Natural Philadelphia, 115341662X, 9781153416627 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 3 by Academy of Natural Philadelphia, 1153416603, 9781153416603 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 30 by Academy of Natural Philadelphia, 1153416484, 9781153416481 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 32 , 1175332151, 9781175332158 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 32 by Academy Of Natural Philadelphia, 1153416522, 9781153416528 Details

Proceedings of the Academy of Natural Sciences of Philadelphia Volume 33 , 1149501197, 9781149501191 Details