Proceedings of the Academy of Natural Sciences of Philadelphia, Volume 54/fr-ca/proceedings-of-the-academy-of-natural-sciences-of-philadelphia-volume-54/54D73DE8-5DB7-4239-A320-B89BBCAFFE30.html54D73DE8-5DB7-4239-A320-B89BBCAFFE30
Proceedings of the Academy of Natural Sciences of Philadelphia, Volume 54