TY  - BOOK
AU  - Purves,William K.
AU  - Orians,Gordon H.
TI  - Life, the science of biology  (Study Guide)
SN  - 0878937358
AV  - QH308.2.P87 1987 
U1  - 574 19
PY  - 1987///
CY  - Sunderland, Mass.
PB  - Sinauer Associates
KW  - Biology
N1  - Includes bibliographies and index
ER  -