APA (7th ed.) Citation

Keyes, F. (1977). Opportunities in psychiatry. Vocational Guidance Manuals.

Chicago Style (17th ed.) Citation

Keyes, Fenton. Opportunities in Psychiatry. Louisville, Ky.: Vocational Guidance Manuals, 1977.

MLA (9th ed.) Citation

Keyes, Fenton. Opportunities in Psychiatry. Vocational Guidance Manuals, 1977.