APA (7th ed.) Citation

United States. Federal Board for Vocational Education. (1919). Show card writing. GPO.

Chicago Style (17th ed.) Citation

United States. Federal Board for Vocational Education. Show Card Writing. [Washington]: GPO, 1919.

MLA (9th ed.) Citation

United States. Federal Board for Vocational Education. Show Card Writing. GPO, 1919.

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