TY  - GEN
AU  - Raven, Peter H.
AU  - Johnson, George B.
TI  - Understanding biology
SN  - 0697344770
PY  - 1996///
CY  - Dubuque, Lowa
PB  - Wm. C. Brown Publishers
KW  - Biology
KW  - Biology - Study and teaching
ER  -