TY  - BOOK
AU  - Nelson, Darby.
AU  - Cunningham, William P.
AU  - Saigo, Barbara W.
TI  - Environmental science: A global concern
SN  - 9780072909371
AV  - GE 105 .N45 2001 
PY  - 2001///
CY  - New york
PB  - Mc Graw hill
KW  - Environmental science
ER  -