TY  - BOOK
TI  - McGraw-Hill encyclopedia of environmental science
SN  - 0070452601
AV  - QH540.4 M34 1974
PY  - 1974///
CY  - New York
PB  - McGraw-Hill Book Company
KW  - Ecology
KW  - Encyclopedias
KW  - Human beings
KW  - Influence on nature
KW  - Environmental protection
N1  - Includes bibliographical references and index
ER  -