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, c1946. - 109 p. ills. ; 24 cm.
agr46000005
Soil conservation--United States.
Erosion.
Soil erosion--United States.
S623 / .V3
631.45 / DEL
The land renewed : the story of soil conservation by William R. Van Dersal and Edward H. Graham. - New York : Oxford university press, c1946. - 109 p. ills. ; 24 cm.
agr46000005
Soil conservation--United States.
Erosion.
Soil erosion--United States.
S623 / .V3
631.45 / DEL