TY  - BOOK
AU  - Turk,Amos
AU  - Turk,Jonathan
AU  - Wittes,Janet T.
TI  - Ecology, pollution, environment
T2  - Saunders golden series
SN  - 0721691388
AV  - TD174 .T87 1972
U1  - 333.7 
PY  - 1972///
CY  - Philadelphia
PB  - Saunders
KW  - Pollution
KW  - Ecology
KW  - Population
N1  - Includes bibliographies
ER  -