TY  - BOOK
AU  - Enger Eldon, D.
TI  - Environmental Science
SN  - 0-07-231547-4
U1  - 363.7 
PY  - 2002///
CY  - New York
PB  - McGraw Hill
KW  - Economics
KW  - Environmental Interrelationships , Environmental Ethics
ER  -