989 resultados para Slope-Hettinger Soil Conservation District (North Dakota)
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Shipping List Date: 05/30/2003
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Includes bibliographical references (p. 82).
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Cover title.
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Contribution from Soil Conservation Service.
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"The greater part of the material used was selected from the files of the Work Projects Administration Erosion history project, 701-2-240, Columbia, S.C."--Foot-note, p. 1.
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Cover title.
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Contribution from Soil Conservation Service.
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"August 1981."
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Cover title.
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"U.S. Dept. of Agriculture in cooperation with the Agricultural Experiment Station, University of Puerto Rico."
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"Issued December 1949."
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"October 1946."
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.