1.
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Washington : U.S. Government Publishing Office, 2018.
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2.
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Washington : U.S. Government Publishing Office, 2015.
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3.
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West Conshohocken, Pennsylvania : Templeton Press, 2014. ©2014
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4.
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Washington : U.S. Government Printing Office, 2014. Washington, DC : For sale by the Superintendent of Documents, U.S. Government Printing Office.
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5.
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Ann Arbor, Mich. : University of Michigan Press, 1999, c1997.
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6.
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Washington : U.S. Government Printing Office, 2013. Washington, DC : For sale by the Superintendent of Documents, U.S. Government Printing Office.
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7.
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Baltimore : Johns Hopkins University Press, 2007.
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8.
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Santa Monica, CA : RAND, 2005.
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9.
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Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., 2007.
KF27 .S3975 2007a |
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10.
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Reading, Mass. : Addison Wesley Pub. Co., c1997 (1996 printing)
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