TY  - BOOK
AU  - Raven, Peter H.
AU  - Johnson, George B.
TI  - Understanding biology
SN  - 0801625181
AV  - QH 308.2 .R38 1988 
PY  - 1988///
CY  - Toronto
PB  - Time Mirror
KW  - Biology
N1  - Include index
ER  -