Soil conservation
Bennett, Hugh Hammond, 1881-1960.
Soil conservation Hugh H. Bennett - New York Arno Press & the New York Times 1970 - 993 p. : ill. ; 24 cm. - American environmental studies .
First published 1939 by McGraw-Hill Book Co., NewYork
0405026560
74-125731
Soil conservation--United States
Soil erosion--United States
Soil conservation Hugh H. Bennett - New York Arno Press & the New York Times 1970 - 993 p. : ill. ; 24 cm. - American environmental studies .
First published 1939 by McGraw-Hill Book Co., NewYork
0405026560
74-125731
Soil conservation--United States
Soil erosion--United States