TY  - BOOK
AU  - Cunningham,William P
AU  -  Mary Ann Cunningham
TI  - Principles of environmental science:  inquiry and applications 
SN  - 0-07-122186-3
PY  - 2011///
CY  - New York
PB  - McGraw-Hill
KW  - Environmental science-textbooks
N1  - Include index
ER  -