Frederick R. Troeh

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Dictionary of agricultural and environmental science / Frederick R. Troeh and Roy L. DonahueFrederick R. Troeh, Roy Luther Donahue
Dictionary of agricultural and environmental science / Frederick R. Troeh and Roy L. Donahue
Frederick R. Troeh, Roy Luther Donahue · 2003 · 553 pages
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Introductory Soil ScienceRobert G. Palmer, Frederick R. Troeh
Introductory Soil Science
Robert G. Palmer, Frederick R. Troeh · 1995 · 128 pages
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Los suelos y su fertilidadLouis M. Thompson, Frederick R. Troeh
Los suelos y su fertilidad
Louis M. Thompson, Frederick R. Troeh · 1982
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