TY  - BOOK
TI  - McGraw-Hill encyclopedia of environmental science
SN  - 0070452601
AV  - QH540.4 .M3
U1  - 304.2/03 
PY  - 1974///]
CY  - New York
PB  - McGraw-Hill
KW  - Ecology
KW  - Dictionaries
KW  - Environmental protection
KW  - Local
KW  - Man
KW  - Influence on nature
N1  - Includes bibliographies
ER  -