TY  - BOOK
AU  - Cunningham, William P.
AU  - Cunningham, Mary Ann
TI  - Environmental science: a global concern
SN  - 0-07-110596-4
U1  - 504 
PY  - 2007///
CY  - Boston
PB  - Mc Graw- Hill
KW  - Environmental science
ER  -