Manger,Leif O. From the montains tothe plains : the integration of the lafafa nuba into sudanese society / Leif O.Manger . - Uppsala : Nordiska afrikainstitutit, 1994 . - 173 p. : ill.,couv.ill ; 22 cm. Bibliogr.Index ISBN: 9171063366 Universal Decimal Class. No.: 390