(1968). Municipality of Bulacan, province of Bulacan: B.D. Fabila and D.M. Frogoso. [s.n.].
芝加哥风格引文Municipality of Bulacan, Province of Bulacan: B.D. Fabila and D.M. Frogoso. [Manila]: [s.n.], 1968.
MLA引文Municipality of Bulacan, Province of Bulacan: B.D. Fabila and D.M. Frogoso. [s.n.], 1968.
警告：这些引文格式不一定是100％准确.