PPractical orthography in NigeriaPractical orthography in Nigeriade Kay WilliamsonMateriasAfrican languagesLanguagesOrthography and spellingEdiciones (1)Practical orthography in Nigeria (1984)Heinemann Educational Books · inglésMás obras de Kay WilliamsonBBenue-Congo comparative wordlistBenue-Congo comparative wordlistIssues in African languages and linguisticsAAn Introduction to Ị̀ka and Ụkwụanị̀An Introduction to Ị̀ka and Ụkwụanị̀