Valondo, Rowel S. Status of the sewage and septage management program of the City of San Fernando, La Union : an input to strategic action plan / Rowel S. Valondo. - DMMMSU-OUS : [s.n.], 2015. - xiv, 176 pages : illustration ; 28 centimeter. References: pages 117-120. Subjects--Topical Terms: Sewage treatment. Sewage disposal. Dewey Class. No.: TH 363.7284 V24s 2015