TY  - BOOK
AU  - Southwick, Charles H..
TI  - Ecology and The quality of our environment / 
SN  - 0-442-=27921-3
U1  - G:55 
PY  - 1997///
CY  - New York : 
PB  - D. Van Nostrand Company Regional Offices , 
KW  - Life Science <Ecology>
ER  -