TY  - BOOK
AU  - CUNNINGHAM (William P);CUNNINGHAM (Mary Ann).
TI  - Principles of environmental science: inquiry and applications
SN  - 70486611
U1  - 363.7 CUNW 
PY  - 2002///
CY  - New Delhi
PB  - Tata McGrawhill
KW  - Environmental Problems
ER  -