Search Results       Your search for [author]Bautista, Eumelia R. B., 1939- returned 1 record.           Chemical characteristics of the waters of the Pampanga River and the Laguna de Bay as factors influencing their suitability for irrigation [microform]. by Bautista, Eumelia R. B., 1939-; Quezon City: Photoduplication Service, University of the Philippines Library, 1974. Subject: Water -- Analysis; Irrigation -- Philippines -- Pampanga River; Irrigation -- Philippines -- Laguna de Bay.          Add to Book Cart Relevance: 24.19%