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New York: Nova Science Publishers, c2008
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Berkeley, Calif.: Inst. of Governmental Studies Press, Univ. of California, 1995
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Berkeley, Calif. [u.a.]: Univ. of California Press, c1993
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Washington, D.C.: CQ Press, 1990
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Boston: Little, Brown & Co., 1973
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Washington: US Government Print. Office, 1971
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[Amherst]: Univ. of Massachusetts Pr., 1970