Abaya, Helbert B. Traffic management program in the Municipality of Sta. Cruz, Ilocos Sur / Helbert B. Abaya. - City of San Fernando, La Union : [s.n.], 2012. - xii, 72 pages : illustration ; 28 centimeter. Bibliography: pages 61-62. Subjects--Topical Terms: Traffic regulations. Dewey Class. No.: TH 388.4 Ab7t 2012