Zum Inhalt springen
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East Lansing: Bureau of Business and Economic Research, Michigan State University, 1968
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Homewood, Ill.: Irwin, 1983
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Emerald, 2009
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Emerald, 2002
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Emerald, 2000
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SAGE Publications, 1998
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SAGE Publications, 1997
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SAGE Publications, 1996
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SAGE Publications, 1995
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SAGE Publications, 1986
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SAGE Publications, 1984
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Emerald, 1979
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SAGE Publications, 1977
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SAGE Publications, 1973
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SAGE Publications, 1970
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SAGE Publications, 1968
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JSTOR, 1968
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SAGE Publications, 1964
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University of Chicago Press, 1964
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University of Chicago Press, 1964