APA (7th ed.) Citation

United States. Federal Board for Vocational Education. (1921). Preliminary work done on analysis of watchmaker's occupation. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Federal Board for Vocational Education. Preliminary Work Done on Analysis of Watchmaker's Occupation. [Washington]: [publisher not identified], 1921.

MLA (9th ed.) Citation

United States. Federal Board for Vocational Education. Preliminary Work Done on Analysis of Watchmaker's Occupation. [publisher not identified], 1921.