TY  - BOOK
TI  - McGraw-Hill encyclopedia of environmental science
SN  - 0070452644
U1  - R 
PY  - 1980///
CY  - New York
PB  - McGraw-Hill
KW  - Ecology
KW  - Dictionaries
KW  - Environmental protection
KW  - Local
KW  - Man
KW  - Influence on nature
N1  - Includes bibliographical references and index
ER  -