Anna Brookie; Anne Lawrence; Joye Halford; Robin Tiffen; Jan Wallace; David Greenwood; David Robertson; Peter Cribb; Sot Cambridge University Press (2008) Pehmeäkantinen kirja
C I O Okeke; M van Wyk; N Phasha; Chinedu I. O Okeke; N A Boaduo; M Mukwambo; K M Ngcoza; C. Chikunda; M M van Wyk; Sot Oxford University Press Southern Africa (2014) Pehmeäkantinen kirja
Krassimir T. Atanassov (ed.); Oscar Castillo (ed.); Janusz Kacprzyk (ed.); Maciej Krawczak (ed.); Patricia Melin (ed.); Sot Springer (2015) Pehmeäkantinen kirja
Anna Brookie; Anne Lawrence; Joye Halford; Robin Tiffen; Jan Wallace; David Greenwood; David Robertson; Peter Cribb; Sot Cambridge University Press (2008) Moniviestin
Anna Brookie; Anne Lawrence; Joye Halford; Robin Tiffen; Jan Wallace; David Greenwood; David Robertson; Peter Cribb; Sot Cambridge University Press (2008) Moniviestin
Krassimir T. Atanassov (ed.); Janusz Kacprzyk (ed.); Andrzej Kałuszko (ed.); Maciej Krawczak (ed.); Jan Owsiński (ed.); Sot Springer (2017) Pehmeäkantinen kirja
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