Soil and water conservation; for productivity and environmental protection
Troeh, Frederick R.
Soil and water conservation; for productivity and environmental protection - Englewood Cliffs, Prentice Hall, 1980 - 718 p. : ilus.
52854
Agua--Conservacion.
Erosión.
Suelos--Conservación.
631.45 / T7
Soil and water conservation; for productivity and environmental protection - Englewood Cliffs, Prentice Hall, 1980 - 718 p. : ilus.
52854
Agua--Conservacion.
Erosión.
Suelos--Conservación.
631.45 / T7
