APA (7th ed.) Citation

Philippines (Commonwealth) Bureau of Mines & Philippines (Republic). Bureau of Mines. Information circular. no. 1-. [s.n.

Chicago Style (17th ed.) Citation

Philippines (Commonwealth) Bureau of Mines and Philippines (Republic). Bureau of Mines. Information Circular. No. 1-. Manila: [s.n.

MLA (9th ed.) Citation

Philippines (Commonwealth) Bureau of Mines and Philippines (Republic). Bureau of Mines. Information Circular. No. 1-. [s.n.

Warning: These citations may not always be 100% accurate.