TY  - BOOK
AU  - ANDERSON,STANLES H.
AU  - BEISWENGER,PANALDE
AU  - PURDOM,P.
TI  - ENVIRONMENTAL SCIENCE / 
U1  - 363.7 
PY  - 1993///
CY  - [S.N] : 
PB  - MACMILLON PUBLISHING CONPANY ، 
KW  - ENVIRONMENTAL POLICY
KW  - ECOLOGY
KW  - ENVIRONMENT OF PRATECTION
KW  - HUMAN ECOLOGY
ER  -