TY  - BOOK
AU  - Raven, Peter H.
AU  - Berg, Linda R.
AU  - Johnson, George B.
TI  - Environment
SN  - 0030143292
U1  - 574.5 
PY  - 1993///
CY  - New York: 
PB  - Saunders College Publishing, 
KW  - Ecosystems
KW  - Environment
KW  - Life science
KW  - Population growth
ER  -