TY  - BOOK
AU  - Purves,William K.
AU  - Orians,Gordon H.
TI  - Life: the science of biology 
SN  - 0871507684 (hbk.) 
PY  - 1983///
CY  - Sunderland, Mass.
PB  - Sinauer Associates
KW  - Biology
N1  - Includes bibliographical references
ER  -