TY  - BOOK
AU  - Wessells,Norman K.
AU  - Hopson,Janet L.
TI  - Biology
SN  - 0394337328
U1  - 574 
PY  - 1988///
CY  - New York
PB  - Random House
KW  - Biology
KW  - Plant biology
KW  - Animal biology
KW  - Population biology
ER  -