TY  - BOOK
AU  - WESSELLS, N.K
TI  - Vertebrate structures and functions
SN  - 0716708892
U1  - ZOO 596.05 
PY  - 1974///
CY  - San Francisco
PB  - W.H.Freeman 
KW  - VERTEBRATES
KW  - ADAPTATION (BIOLOGY)
ER  -