Van Dersal, William R.
The land renewed : William R. Van Dersal and Edward H. Graham. the story of soil conservation / - New York : Oxford university press, c 1946. - 106 p. : ill. ; 24 cm.
322 322
Soil conservation.
631.4 / V26l
The land renewed : William R. Van Dersal and Edward H. Graham. the story of soil conservation / - New York : Oxford university press, c 1946. - 106 p. : ill. ; 24 cm.
322 322
Soil conservation.
631.4 / V26l