Check-list of North American Batrachia and Reptilia with a systematic list of the higher groups and an essay on geographical distribution, based on the specimens contained in the U. S. National Museum / by Edward D. Cope.
Cope, E. D. (Edward Drinker),
FC 02 0203 no. 06176 AEU
CIHM/ICMH microfiche series ; no. 06176