Nilo-Saharan :  Proceedings of the Nilo-Saharan Linguistics Colloquium, Leiden, September 8-10, 1980 / 
edited by Thilo C. Schadeberg, M. Lionel Bender. 
 - viii, 349 pages :  illustrations ;  23 cm. 
<br/><br/><label>ISBN: </label>9070176262 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nilo-Saharan languages--Congresses.<br/>Nilo-Saharan languages.