TY  - BOOK
AU  - Wessells,Norman K.
TI  - Vertebrates: adaptation 
SN  - 5071671168
PY  - 1980///
CY  - San Francisco
PB  - W. H. Freeman
KW  - Vertebrates
KW  - Addresses, essays, lectures
KW  - Adaptation (Biology)
N1  - Bibliography : P. 245-250
ER  -