Cita APA (7a ed.)

Philippines. National Historical Institute. (1994). Historical markers: Regions V-XII. National Historical Institute.

Cita Chicago Style (17a ed.)

Philippines. National Historical Institute. Historical Markers: Regions V-XII. Manila: National Historical Institute, 1994.

Cita MLA (9a ed.)

Philippines. National Historical Institute. Historical Markers: Regions V-XII. National Historical Institute, 1994.