TY  - BOOK
AU  - Dasmann, Raymond F.
TI  - Environmental conservation
U1  - 333.716 21st ed. 
PY  - 1959///
CY  - New York
PB  - John Wiley and Sons
KW  - Ecology
KW  - Environment
KW  - Protection
N1  - Index: 297-307pp
ER  -