TY  - BOOK
AU  - Raven,Peter H.
AU  - Johnson,George B.
TI  - Understanding biology
SN  - 0697235033
U1  - 578.7 19
PY  - 1999///
CY  - Dubuque
PB  - WCB
KW  - Biology
KW  - Spines
N1  - Includes index and bibliographical references; ls
N2  - Environment Management
ER  -