A land between two Niles : quaternary geology and biology of the central Sudan 

 - Rotterdam ; [Salem], NH:  Balkema ; Distributed in the USA & Canada by MBS,  1982 
 - x, 246 p. : ill. ; 24 cm 
<br/><br/><label>ISBN: </label>906191096X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology - Sudan
<br/><br/><label>Dewey Class. No.: </label>508.624 WIL