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Washington: CQ Press, 2011
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Chicago, [Ill.] [u.a.]: University of Chicago Press, 2009
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Albany: State University of New York Press, c 2007
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Lanham, Md. [u.a.]: Rowman & Littlefield, 2005
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Cambridge [u.a.]: Cambridge University Press, 2003
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Montreal: ICAO, 1995
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Chicago [u.a.]: Univ. of Chicago Pr., 1993
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Washington, D.C.: Brookings Institution, c1992
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Münster: Lit, 1989