Liongson, Leonardo Quesada, 1948-, <br/><br/>
Operational hydrology and water quality investigations of the stream - reservoir system in the Upper Pampanga River Project, Philippines  [microform] / 
Leonardo Quesada Liongson. 
 - Ann Arbor, Mich. :  University Microfilms International  1977. 
 - 1 microfilm reel :  positive ;  35 mm. 
<br/><br/>Thesis (Ph.D.) - University of Arizona, 1976. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydrology--Philippines.<br/>Water resources development--Philippines.