David Levinson, editor in chief
Simon & Schuster Macmillan, 1995
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Grolier Incorporated, 1991
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Grolier, 1994
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Warren Thomas Reich, editor in chief
Simon & Schuster Macmillan, 1995
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edited by Goerge Thomas Kurian, Graham T.T. Molitor
Macmillan Library Reference USA, 1996
Buku Referensi