Cita APA (7a ed.)

(1961). Polillo Island, Quezon, Phils. Board of Technical Surveys and Maps.

Cita Chicago Style (17a ed.)

Polillo Island, Quezon, Phils. Manila: Board of Technical Surveys and Maps, 1961.

Cita MLA (9a ed.)

Polillo Island, Quezon, Phils. Board of Technical Surveys and Maps, 1961.