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Flugel, John Carl
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Cattaneo, Carlo <1801-1869>
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Evans, Phil
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Heider, Fritz
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International seminar Global environmetal change: geographical reflections on its perception and evaluation <1993 ; Milano>
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Isaacs, Susan <1885-1948>
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Mansfield, Katherine
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Travers, Robert Morris William
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Geldard, Frank A.
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Sullivan, Harry Stack
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Lewin, Kurt
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Ausubel, David P.
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Bonaiuto, Paolo
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