Man's impact on environment
Detwyler, Thomas R.
Man's impact on environment - - New York McGraw Hill, 1971 - xiii,731 p. 24 cm - BSI 7050 : 1989 .
1
Man-Influence on nature
628.5 Det
Man's impact on environment - - New York McGraw Hill, 1971 - xiii,731 p. 24 cm - BSI 7050 : 1989 .
1
Man-Influence on nature
628.5 Det