United States. Petroleum Administrative Board. (1934). Preliminary report on survey of crude petroleum, cost of production for years 1931-33, and comparison with years 1927-30. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Petroleum Administrative Board. Preliminary Report on Survey of Crude Petroleum, Cost of Production for Years 1931-33, and Comparison with Years 1927-30. [Washington]: [s.n.], 1934.
MLA (9th ed.) CitationUnited States. Petroleum Administrative Board. Preliminary Report on Survey of Crude Petroleum, Cost of Production for Years 1931-33, and Comparison with Years 1927-30. [s.n.], 1934.
Warning: These citations may not always be 100% accurate.