Anderson, Henry R. <br/><br/>
Aquifers in the Sokoto Basin, northwestern Nigeria, with a description of the general hydrogeology of the region, by Henry R. Anderson and William Ogilbee. 

 - Washington, U.S. Govt. Print. Off.,  1973 
 - v, L79 p. illus. and portfolio (10 fold. maps, 1 fold. sheet) 24 cm. $6.75 Bibliography: p. L59-L60. 
 - U.S. Geological Survey water-supply paper ; no.1757-L .
<br/><br/><br/>eng 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aquifers--Nigeria--Sokoto River watershed.<br/>Water quality--Nigeria--Sokoto River watershed.