APA (7th ed.) Citation

United States. Department of Labor. Wage and Hour Division. (1938). Interpretative bulletin no. 4: Maximum hours and overtime compensation. [s.n.].

Chicago Style (17th ed.) Citation

United States. Department of Labor. Wage and Hour Division. Interpretative Bulletin No. 4: Maximum Hours and Overtime Compensation. [Washington]: [s.n.], 1938.

MLA (9th ed.) Citation

United States. Department of Labor. Wage and Hour Division. Interpretative Bulletin No. 4: Maximum Hours and Overtime Compensation. [s.n.], 1938.