TY  - GEN
AU  - Purves ,William K.
AU  - Orians , Gordon H. ;
AU  -  Heller , H. Craig  
TI  - Life: the science of biology
SN  - 0716722763
U1  - 570 
PY  - 1992///
CY  - New York
PB  - Sinauer Association
KW  - BIOLOGY
ER  -