United States. Federal Board for Vocational Education. (1919). Commercial occupations: Bookkeeping, general clerical work, stenography, retail selling, telegraphy and wireless operating, accounting, salesmanship, advertising, foreign trade service, secretarial work, life insurance salesmanship, office management, banking, commercial teaching. GPO.
Chicago Style (17th ed.) CitationUnited States. Federal Board for Vocational Education. Commercial Occupations: Bookkeeping, General Clerical Work, Stenography, Retail Selling, Telegraphy and Wireless Operating, Accounting, Salesmanship, Advertising, Foreign Trade Service, Secretarial Work, Life Insurance Salesmanship, Office Management, Banking, Commercial Teaching. [Washington]: GPO, 1919.
MLA (9th ed.) CitationUnited States. Federal Board for Vocational Education. Commercial Occupations: Bookkeeping, General Clerical Work, Stenography, Retail Selling, Telegraphy and Wireless Operating, Accounting, Salesmanship, Advertising, Foreign Trade Service, Secretarial Work, Life Insurance Salesmanship, Office Management, Banking, Commercial Teaching. GPO, 1919.