Soil and water conservation
Troeh, Frederick R.
Soil and water conservation for productivity and environmental protection [Text] - Englewoodcliffs Prentice Hall 1980 - xv, 718 p. ill. 23 cm.
9780138221553
Agriculture
631.45 / TRO
Soil and water conservation for productivity and environmental protection [Text] - Englewoodcliffs Prentice Hall 1980 - xv, 718 p. ill. 23 cm.
9780138221553
Agriculture
631.45 / TRO