APA (7th ed.) Citation

Philippines (Republic). Board of Technical Surveys and Maps. Topographical Maps Division. (1966). Topographical maps: Descriptive folder. s.n.

Chicago Style (17th ed.) Citation

Philippines (Republic). Board of Technical Surveys and Maps. Topographical Maps Division. Topographical Maps: Descriptive Folder. [Manila: s.n, 1966.

MLA (9th ed.) Citation

Philippines (Republic). Board of Technical Surveys and Maps. Topographical Maps Division. Topographical Maps: Descriptive Folder. s.n, 1966.