Wendorf, Fread  . <br/><br/>
Prehistory of the nil valley /  
by Fred Wendorf and Romuald Schild. 
 - London :   Academic Press ,   1989. 
 - xxvii,411p. :   figs,table ;   22cm. .  
<br/><br/>NULL 
<br/><br/><label>ISBN: </label> NULL (Hb) 
<br/><br/><label>Subjects--Index Terms: </label>GEOLOGY-NILL VALLEY 
<br/><br/><label>Dewey Class. No.: </label>556.2  / WEN/P