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ProQuest (Firm)
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Library of Congress. Congressional Research Service
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Peterson's Guides, Inc
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United States. Congress. Senate
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Gale Research Company
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Geological Survey (U.S.)
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U.S. and Foreign Commercial Service
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Midland Atlas Company
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Food and Agriculture Organization of the United Nations
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Texas. State Department of Education
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United States. Congress. Joint Committee on Defense Production
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Foundation Center
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Unesco
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International Atomic Energy Agency
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Rand McNally and Company
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National Foreign Assessment Center (U.S.)
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Gale (Firm)
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National Agricultural Library (U.S.)
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Texas Natural Resource Conservation Commission
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American Psychological Association
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Blum, Laurie
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NetLibrary, Inc
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