TY  - BOOK
AU  - Black,Brain 
AU  - Lybecker,DonnaL
TI  - Great debates in American environmental history; Vol.1
SN  - 9780313339318
U1  - 363.700973  
PY  - 2008///
CY  - London
PB  -  greenwood
KW  - Nature--Effect of human beings on
KW  - United States
KW  - Ecology
ER  -