Hamito-Semitica : proceedings of a colloquium held by the historical section of the Linguistics Association (Great Britain) at the School of Oriental and African Studies, University of London, on the 18th, 19th and 20th of March 1970 / edited by James and Theodora BynonCurrent progress in Afro-Asiatic linguistics : papers of the third International Hamito-Semitic congress / ed. by James Bynon