(1961). Maasam River, Agusan, Philippines. Board of Technical Surveys and Maps.
Chicago Style (17th ed.) CitationMaasam River, Agusan, Philippines. Manila: Board of Technical Surveys and Maps, 1961.
MLA (9th ed.) CitationMaasam River, Agusan, Philippines. Board of Technical Surveys and Maps, 1961.
Warning: These citations may not always be 100% accurate.