Daniel Chirot, Martin E.P. Seligman.
American Psychological Association , 2001
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Grover, Sonja C., author
[Springer, ], 2012
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Bizot, Francois, author
Rider, 2011
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Stassen, Jean-Philippe, author
First Second, 2006
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Bowett, D. W. (Derek William), author
Stevens & Sons , 1982
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