APA (7th ed.) Citation

United States. Federal Board for Vocational Education. (1919). Unit course: Shoe repairing I, handwork necessary to prepare shoes for machine finishing, trial edition. GPO.

Chicago Style (17th ed.) Citation

United States. Federal Board for Vocational Education. Unit Course: Shoe Repairing I, Handwork Necessary to Prepare Shoes for Machine Finishing, Trial Edition. [Washington]: GPO, 1919.

MLA (9th ed.) Citation

United States. Federal Board for Vocational Education. Unit Course: Shoe Repairing I, Handwork Necessary to Prepare Shoes for Machine Finishing, Trial Edition. GPO, 1919.