TY  - BOOK
AU  - Cunningham, W.P/ Cunningham , M.A
TI  - Environmental science: A global concern 
SN  - 9780071287784
AV  - GF105.C8 2007
PY  - 2007///
CY  - New York 
PB  - McGraw Hill 
KW  - Enivronmental science
ER  -