309 resultados para Soil conservation projects
em University of Michigan
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Mode of access: Internet.
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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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"August 1964"--P. [1].
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Mode of access: Internet.
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Includes bibliographies.
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Reuse of record except for individual research requires license from Congressional Information Service, Inc.
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Reuse of record except for individual research requires license from Congressional Information Service, Inc.
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Reuse of record except for individual research requires license from Congressional Information Service, Inc.
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CIS Microfiche Accession Numbers: CIS 82 S161-1
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CIS Microfiche Accession Numbers: CIS 81 S161-7
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Reuse of record except for individual research requires license from Congressional Information Service, Inc.
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Mode of access: Internet.
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Mode of access: Internet.