(1961). Polangui, Albay, Phils. Board of Technical Surveys and Maps.
Chicago Style (17th ed.) CitationPolangui, Albay, Phils. Manila: Board of Technical Surveys and Maps, 1961.
MLA (9th ed.) CitationPolangui, Albay, Phils. Board of Technical Surveys and Maps, 1961.
Warning: These citations may not always be 100% accurate.