The land renewed; the story of soil conservation,
Van Dersal, William Richard, 1907-
The land renewed; the story of soil conservation, by William R. Van Dersal and Edward H. Graham. - New York, Oxford university press, 1946. - 109 p. illus. 24 cm.
agr46000005
Soil conservation--United States.
Erosion.
Soil erosion--United States.
S623 / .V3
The land renewed; the story of soil conservation, by William R. Van Dersal and Edward H. Graham. - New York, Oxford university press, 1946. - 109 p. illus. 24 cm.
agr46000005
Soil conservation--United States.
Erosion.
Soil erosion--United States.
S623 / .V3