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New Haven, Conn. [u.a.]: Yale University Press, 1993
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New Haven, Conn. [u.a.]: Yale University Press, 1986-
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JSTOR, 1989
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Society for History Education, 1989
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American Geographical Society, 1963
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Informa UK Limited, 1959
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Clark University, 1961
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SAGE Publications, 1957
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SAGE Publications, 1956
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JSTOR, 1956
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Institute of Government of the University of Utah, 1956
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American Geographical Society, 1957
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Institute of Government of the University of Utah, 1957
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American Geographical Society, 1958
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SAGE Publications, 1953
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Project MUSE, 1954
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Informa UK Limited, 1955
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JSTOR, 1955
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American Geographical Society, 1955
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Institute of Government of the University of Utah, 1953