Veneracion, Jaime Balcos San Ildefonso, Bulacan : isang kasaysayang bayan / Jaime Balcos Veneracion. - San Ildefonso, Bulacan : Bahay Saliksikan ng Bulacan, 2021. - viii, 220 pages ; 26 cm. ISBN: 9789719513148 Pbk. Bp. Subjects--Topical Terms: Bucalan--HistorySan Ildefonso, Bulacan--History LC Class. No.: DS 688 V46 2021 F