TY  - BOOK
AU  - Purves William K.
AU  - Sadava David 
AU  - Orians Gordon H.
AU  - Heller H. Craig 
TI  - Life The Science of Biology
SN  - 9780716798569
U1  - 574 23
PY  - 2004///
CY  - New Delhi
PB  - W. H. Freeman and Company
KW  - Biology
ER  -