Quiñones Márquez, Ferdinand. <br/><br/>
Water resources investigations in Puerto Rico and the U.S. Virgin Islands 
Ferdinand Quiñonez-Márquez and Gilberto Peña-Cruz. 
 - San Juan, P. R.  U.S. Geological Survey. Water Resources Division  19- 
 - v.  ill. 
 - Open-File Report  85-556 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water resources development--Puerto Rico.<br/>Water resources development--Virgin Islands of the United States.