The Niles  biology of an ancient river / 
edited by Julian Rzoska. 
 - The Hague :  W.Junk B.V.,  1976. 
 - 417p. ;  24cm. 
 - Monographiae biologicae  v.29 .
<br/><br/><label>ISBN: </label>9061930812 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Freshwater biology--Nile river.<br/>Stream ecology--Nile river.