TY  - BOOK
AU  - Cunningham,William P..
AU  - Cunningham,Ann Cunningham  .
TI  - Principles of environmental science : inquiry and applications / 
SN  - 9780071221863
U1  - 363.7 
PY  - 2009///,rep2011
CY  - New Delhi : 
PB  - McGraw Hill , 
KW  - ENVIRONMENTAL SCIENCE
KW  - ENVIRONMENTAL POLLUTION
N1  - includes appendix,glossary and index
ER  -