TY  - BOOK
AU  - CUNNINGHAM,William P.
AU  - Cunningham, Mary Ann
TI  - Principles of  Environmental Science
SN  -  0-07-064772-0
U1  - 333.7 
PY  - 2007///
CY  - New Delhi
PB  - Tata mcgraw Hill
KW  - Environmental
KW  - Science
N1  - including index
ER  -