Soil conservation .
Bennett, Hugh Hammond.
Soil conservation . - New York : Mcgraw-hill Book, 1939. - Xvii, 993 p. : - American environmental studies .
0405026560 9780405026560
74125731
Sols
Erosion.
Conservation Erosion Etats-Unis Sedimentation Sol
631.450 973
Soil conservation . - New York : Mcgraw-hill Book, 1939. - Xvii, 993 p. : - American environmental studies .
0405026560 9780405026560
74125731
Sols
Erosion.
Conservation Erosion Etats-Unis Sedimentation Sol
631.450 973