@article {299,
	title = {Social patterns in the Leptodactylid Frogs Syrrhophus and EleutherodactylusCopeia},
	number = {1},
	year = {1954},
	pages = {36-38},
	author = {Jameson, D L}
}
@article {307,
	title = {Birds and biogeography of the Sierra de Tamaulipas, an isolated pine-oak habitatThe Wilson Bulletin},
	year = {1954},
	pages = {38-57},
	publisher = {JSTOR},
	author = {Martin, P.S. and Robins, C.R. and Heed, W.B.}
}
@article {282,
	title = {The amphibians and reptiles of Jorullo Volcano, Michoac{\'a}n, MexicoOCCASIONAL PAPERS OF THE MUSEUM OF ZOOLOGY UNIVERSITY OF MICHIGAN},
	year = {1954},
	month = {Oct},
	publisher = {University of Michigan Museum of Zoology},
	author = {Duellman, W E}
}
@article {286,
	title = {Definition of some little-understood members of the Leptodactylid genus Syrrhophus, with description of a new speciesCopeia},
	number = {1},
	year = {1954},
	pages = {48-58},
	author = {Firschein, IL}
}
