APA (7th ed.) Citation

United States. Bureau of Labor Statistics & ProQuest (Firm). (1922). Wages and hours of labor in the petroleum industry 1920. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Bureau of Labor Statistics and ProQuest (Firm). Wages and Hours of Labor in the Petroleum Industry 1920. Washington: [publisher not identified], 1922.

MLA (9th ed.) Citation

United States. Bureau of Labor Statistics and ProQuest (Firm). Wages and Hours of Labor in the Petroleum Industry 1920. [publisher not identified], 1922.

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