100 resultados para SOILS


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Includes bibliography.

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Mode of access: Internet.

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Mode of access: Internet.

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At head of title: U.S. Department of Agriculture, Bureau of Soils.

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"A cooperative project between the Bureau of Soils, U.S. Department of Agriculture and the Tropical Plant Research Foundation, published with the aid of the Cuba Sugar Club, Havanna."

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Includes bibliographical references and index.

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Bibliography: p. 71-76.

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"No. 42, 1913."