Philippines (Republic). Bureau of Mines. Report of investigation. no.1- 1951-. [s.n.
Chicago Style (17th ed.) CitationPhilippines (Republic). Bureau of Mines. Report of Investigation. No.1- 1951-. Manila: [s.n.
MLA (9th ed.) CitationPhilippines (Republic). Bureau of Mines. Report of Investigation. No.1- 1951-. [s.n.
Warning: These citations may not always be 100% accurate.