Water resources of the Guayanilla-Yauco area, Puerto Rico 
by James W. Crooks. 
 - Puerto Rico  1968. 
 - 55 p.  ill. graphs, maps, tables. 
 - Water Resources Bulletin  5. .
<br/><br/> Prepared by the United State Geological Survey in cooperation with Puerto Rico Legislatiave Assembly, Puerto Rico Water Resources Aauthority, Puerto Rico Aqueduct & Sewer Authority and Puerto Rico Industrial Development Company. 
<br/><br/>Bibliographical references p. 55. 
<br/><br/><label>LCCN: </label>fel36001841  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water supply--Puerto Rico.<br/>Water, Under ground--Puerto Rico.<br/>Water supply--Yauco, Puerto Rico.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Puerto Rico