TY  - BOOK
AU  - Parker, Sybil P [ed.]
TI  - McGraw-Hill encyclopedia of environmental science
SN  - 0070452644
U1  - 620.803 
PY  - 1980///
CY  - New York
PB  - McGraw-Hill book Company
KW  - Ecology -- Dictionaries
KW  - Man-Influence on nature -- Dictionaries
KW  - Environmental protection -- Dictionaries
ER  -