Cita APA (7a ed.)

(1968). Municipality of Bulacan, province of Bulacan: B.D. Fabila and D.M. Frogoso. [s.n.].

Cita Chicago Style (17a ed.)

Municipality of Bulacan, Province of Bulacan: B.D. Fabila and D.M. Frogoso. [Manila]: [s.n.], 1968.

Cita MLA (9a ed.)

Municipality of Bulacan, Province of Bulacan: B.D. Fabila and D.M. Frogoso. [s.n.], 1968.