Water resources in Puerto Rico  a review. 

 - San Juan, P.R.  U.S. Geological Survey, Water Resources Division  1981- 
 - v.  ill.  28 cm. 
 - Vol. 1, no. 1 (Nov. 1981)- 
<br/><br/> Caption title. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water resources development--Puerto Rico.