TY  - BOOK
TI  - McGraw-Hill encyclopedia of environmental science
SN  - 0070452601
AV  - QH540.4 .M3
U1  - 301.31 
PY  - 1974///
CY  - New York
PB  - McGraw-Hill
KW  - Ecology
KW  - Encyclopedias
KW  - Environmental sciences
N1  - Includes bibliographies
ER  -