Effects of changing irrigation practices on the ground-water hydrology of the Santa Isabel-Juana Diaz area, south central Puerto Rico 
by Orlando Ramos-Gines; prepared in cooperation with the Puerto Rico Department of Agriculture 
 - San Juan, PR  Denver, CO  U.S. Dept of the Interior, U.S. Geological Survey  1994 
 - iv, 22p  ill, maps  28 cm 
<br/><br/> Shipping List no: 94-0276-P 
<br/><br/>Includes Bibliographical references (p.21-22) 
<br/><br/><label>Subjects--Topical Terms: </label>--Puerto Rico--Santa Isabel Region 
<br/><br/><label>GPO Item No.: </label>0624-B 
<br/><br/><label>Gov. Doc. Class. No.: </label>I 19.42/4:91-4183