990 resultados para Illinois. University. Engineering experiment station.


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Caption title.

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"In cooperation with Texas Agricultural Experiment Station."

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"In cooperation with Colorado State University Experiment Station."

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Cover title.

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United States Department of Agriculture, Bureau of Chemistry and Soils in cooperation with the University of California Agricultural Experiment Station.

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United States Department of Agriculture in cooperation with the University of California Agricultural Experiment Station.

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Bibliography: p. 90.

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Done jointly by the Bureau of Soils and the University of California Agricultural Experiment Station.

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United States Department of Agriculture, Bureau of Chemistry and Soils in cooperatio with the University of California Agricultural Experiment Station.

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Caption title: Soil survey of the Wasco area, California.

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"In cooperation with the University of California Agricultural Experiment Station."

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In cooperation with the University of California Agricultural Experiment Station."

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In cooperation with the University of California Agricultural Experiment Station.

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At head of title: U.S. Department of Agriculture, Bureau of Soils in cooperation with the University of California Agricultural Experiment Station.