TY  - BOOK
AU  - Johnson, George B. & Raven, Peter H.
TI  - Biology: Principles & explorations
SN  - 0-03-051999-3
U1  - Cir. 574 J632 c2001 
PY  - 2001///
CY  - Texas
PB  - Holt, Rinehart and Winston
ER  -