TY  - GEN
AU  - Encyclopedia of environmental science
TI  - McGraw-Hill encyclopedia of environmental science 
SN  - 0070452601
AV  - QH 540.4
PY  - 1974///
PB  - McGraw-Hill
KW  - Ecology - Dictionaries
KW  - Man - Influence on nature - Dictionaries
KW  - Environmental protection - Dictionaries
N1  - 23673
ER  -