TY  - BOOK
AU  - NASH, Frazier Roderick
TI  - American Environmentalism: Readings in conservation History: 
SN  - 0070460590
U1  - 301.3 NAS 
PY  - 1990///
CY  - United State of America
PB  - McGraw - Hill, Inc
KW  - Conservation of natural resources
N1  - include Bibliography
ER  -