E. M. Rowalt

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Books by E. M. Rowalt (50 max)

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Soil defense of range and farm lands in the Southwest

1939

E. M. Rowalt

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Soil defense in the Piedmont

1937

E. M. Rowalt, United States. Soil Conservation Service

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Soil and water conservation in the Pacific Northwest

1937

E. M. Rowalt

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Soil defense in the South

1938

E. M. Rowalt