Philippine Islands. (1923). Laws and regulations governing petroleum lands. In force and effect June 1, 1923. Bureau of Print.
Chicago Style (17th ed.) CitationPhilippine Islands. Laws and Regulations Governing Petroleum Lands. In Force and Effect June 1, 1923. Manila: Bureau of Print, 1923.
MLA (9th ed.) CitationPhilippine Islands. Laws and Regulations Governing Petroleum Lands. In Force and Effect June 1, 1923. Bureau of Print, 1923.
Warning: These citations may not always be 100% accurate.