TY  - BOOK
AU  - Benarde,Melvin A.
TI  - Our precarious habitat: an intergrated approach to understanding man's effect on his enviroment 
AV  - TD180 .B45
PY  - 1970///
CY  - New York
PB  - W. W. Norton
N1  - Includes bibliographical references and index
ER  -