APA (7th ed.) Citation

United States. Division of Labor Standards. (1942). National standards for carpentry apprenticeship. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Division of Labor Standards. National Standards for Carpentry Apprenticeship. [Washington]: [publisher not identified], 1942.

MLA (9th ed.) Citation

United States. Division of Labor Standards. National Standards for Carpentry Apprenticeship. [publisher not identified], 1942.

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