TY  - BOOK
AU  - Benarde,Melvin A.
TI  - Our precarious habitat
SN  - 0393098885(pbk)
AV  - TD180 .B45 1970
U1  - 301.3 
PY  - 1970///]
CY  - New York
PB  - Norton
KW  - Pollution
KW  - Nature
KW  - Effect of human beings on
KW  - Human beings
KW  - Effect of environment on
KW  - Sanitation
N1  - Bibliography: p. [327]-336
ER  -