991 resultados para Washington (D.C.) Filtration plant.
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Appendix III: Bibliographical, v.2, p.441-448.
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Description based on: No. 4 (Nov. 1950); title from cover.
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Title from caption.
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Mode of access: Internet.
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Mode of access: Internet.
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U.S. Department of Agriculture, Bureau of Soils 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.
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U.S. Department of Agriculture, Bureau of Soils in cooperation with the University of California Agricultural Experiment Station.
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"May 1979."
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Mode of access: Internet.
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Item 1005-C
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Mode of access: Internet.
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Cover title.
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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.