TY  - GEN
AU  - Duellman, William E.
TI  - Biology of amphibians
SN  - 0 07 017977 8 :
U1  - 597.6 
PY  - 1986///
CY  - New York
PB  - McGraw-Hill
KW  - AMPHIBIA
N1  - Includes index
ER  -