Senior, Michael <br/><br/>
A regional geography of Africa / 
Michael Senior, P. Olatunde Okunrotifa 
 - Harlow, Essex :  Longman,  1983 
 - 218 p. :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>0582603900 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydrology--Africa, Sub--Saharan<br/>Water supply--Africa, Sub--Saharan
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Africa, Sub-Saharan--Hydrology