Early evolution of the dissorophid amphibians.
Cambridge MA: Bulletin of the Museum of Comparative Zoology, 1964. Octavo, wrappers, signature, a fine copy. More
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Evolutionary relationships, osteology, and zoogeography of Leptodacryloid frogs.
Lawrence, Kansas: University of Kansas Museum of Natural History, 1971. Octavo, line drawings, wrappers, signature, very good copy. More
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