Williams Martin A J Ed. <br/><br/>
Land between tow niles    Quaternary geology and biology of the Central Sudan    

 - Netherland  A A Balkema          1982 
 - x,246p  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geography
<br/><br/><label>Dewey Class. No.: </label>U671(J).678.N7, M2