The
land renewed
the story of soil conservation
Van Dersal, William Richard.
1907-
creator
Graham, Edward H. (Edward Harrison)
1902-1966
joint author.
text
xx
New York
Oxford university press
c1946
1946
monographic
eng
109 p. ills. ; 24 cm.
by William R. Van Dersal and Edward H. Graham.
Soil conservation
United States
Erosion
Soil erosion
United States
S623 .V3
631.45 DEL
agr46000005
DLC
730410
20150108190905.0
6468450