TY  - BOOK
AU  - Cunningham,William P, Cunningham ,Mary Ann.
AU  - x
TI  - Principles of Environmental Science : Inquiry and Applications
SN  - 0070486611
U1  - 620.8/C973p 
PY  - 2002///
CY  - New Delhi
PB  - Tata McGraw_Hill
KW  - Environmental Sciences
KW  - Environment
N1  - Includes
ER  -