McGuinness, C. L. <br/><br/>
Ground-water resources of Puerto Rico 
by Charles L. McGuinness. 
 - [San Juan?]  Puerto Rico Aqueduct and Sewer Service  [1948?] 
 - x, 613, d leaves (some folded)  29 cm. 
<br/><br/> "Prepared in cooperation with the Geological Survey, U.S. Department of the Interior."  "1948." 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water, Under ground--Puerto Rico.