Saville-Troike, Muriel, 1936-
Cambridge University Press, 2012
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Saville-Troike, Muriel, 1936-
Cambridge University Press, 2017
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Hummel, Kirsten M.
Wiley Balckwell, 2014
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Ellis, Rob
Blackwell, 1990
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Leaver, Betty Lou
Cambridge Press , 2005
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