Svendsen, Mark T. (Mark Tange), 1945- Water management strategies and practices at the tertiary level three Philippine irrigation systems / [microform] : by Mark T. Svendsen - Ann Arbor, Mich. : University Microfilms International, 1983 - 4 microfiches ; 11 x 15 cm. Thesis (Ph.D.)-Cornell University, 1983 Subjects--Topical Terms: Water-supply, Agricultural--PhilippinesIrrigation--Philippines