APA (7th ed.) Citation

Kingery, R. E. (1952). Opportunities in library careers. Vocational Guidance Manuals.

Chicago Style (17th ed.) Citation

Kingery, Robert Ernest. Opportunities in Library Careers. New York: Vocational Guidance Manuals, 1952.

MLA (9th ed.) Citation

Kingery, Robert Ernest. Opportunities in Library Careers. Vocational Guidance Manuals, 1952.