TY  - BOOK
AU  - Purves, William K.
AU  - Orians, Gordon H.
AU  - Heller, H. Craig 
TI  - Life: The science of biology
SN  -  0716726297
AV  - QH 305.2.P87 1995 
PY  - 1995///
CY  - USA
PB  - W.H.Freeman and company
KW  - Biology
ER  -