APA (7th ed.) Citation

Boughal, P. F. (1951). Opportunities in the printing trades. Vocational Guidance Manuals.

Chicago Style (17th ed.) Citation

Boughal, Patrick F. Opportunities in the Printing Trades. New York: Vocational Guidance Manuals, 1951.

MLA (9th ed.) Citation

Boughal, Patrick F. Opportunities in the Printing Trades. Vocational Guidance Manuals, 1951.