932 resultados para Aquatic resources conservation
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Half title: The story of water conservation in Virginia.
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Mode of access: Internet.
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Mode of access: Internet.
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Reuse of record except for individual research requires license from Congressional Information Service, Inc.
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Title from cover.
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"GAO-05-211."
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"October 1980."
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"October 1993."
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"Most of the drawings of aquatic plants are through the courtesy of the Minnesota Department of Natural Resources."--p. [2] of cover.
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Bibliography: p. 73-76.
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Bibliography: p. 33.
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"ILLDOE-81/37."
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Bibliography: p. 49-50.
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Bibliography: p. 40-41.
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Bibliography: p. 40-42.