TROEH, Frederick R. Hobbs, J.Arthur Donahue, Roy L.
Soil and water conservation: for productivity and environmental protection / [by] Frederick R.Troeh, J.Arthur Hobbs, Roy L.Donahue - New Jersey Prentice-Hall 1980 - xv, 718 p.
Includes appendixes and index.
138221553
Soil conservation
333.72 / TRO
Soil and water conservation: for productivity and environmental protection / [by] Frederick R.Troeh, J.Arthur Hobbs, Roy L.Donahue - New Jersey Prentice-Hall 1980 - xv, 718 p.
Includes appendixes and index.
138221553
Soil conservation
333.72 / TRO