Language use and social change :  problems of multilingualism with special reference to Eastern Africa : studies presented and discussed at the ninth International African Seminar at University College, Dar es Salaam, December 1968 / 
edited with an introduction by W. H. Whiteley ; foreword by Daryll Forde 
 - London :  Published for the International African Institute by Oxford University Press,  1971 
 - x, 406 p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>ISBN: </label>0197241832 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Multilingualism
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Africa, Eastern--Languages