TY  - BOOK
AU  - Zim, Herbert Spencer,
AU  - Smith,Hobart M.
TI  - Reptiles and amphibians: a guide to familiar american species 
U1  - 597.90973 
PY  - 1964///, c1953
CY  - New York
PB  - Golden Press
KW  - Anfibios
KW  - Estados Unidos
KW  - Reptiles
ER  -