Tapay, Nenita E. <br/><br/>
Irrigation organizational structure and effectiveness  Philippine national and communal systems /  [microform] : 
Nenita Estolano Tapay 
 - Ann Arbor, Mich. :  University Microfilms International,  1984 
 - 2 microfiches ;  11 x 15 cm. 
<br/><br/>Thesis (Ph.D.)- 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Irrigation--Philippines<br/>Irrigation efficiency--Philippines