TY  - BOOK
AU  - Christman,R.F.
TI  - The natural environment: wastes and control 
SN  - 0876206100 :
U1  - 301.3 
PY  - 1973///
CY  - Pacific Palisades, Calif.
PB  - Goodyear Pub.
KW  - Pollution
KW  - Ecology
KW  - Environmental protection
KW  - Environmental policy
N1  - Includes bibliographical references and index
ER  -