Vail, J. R <br/><br/>
Lexicon of geological terms for the Sudan 
J.R. Vail 
 - Rotterdam  A.A. Balkema  1988 
 - vii, 199 p. : maps ; 24 cm 
<br/><br/> Includes bibliographical references and indexes 
<br/><br/><label>ISBN: </label>9061917050 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology<br/>Sudan
<br/><br/><label>Dewey Class. No.: </label>556.24 VAI