APA (7th ed.) Citation

Kaplan, O. J. (1948). Encyclopedia of vocational guidance. Philosophical Library.

Chicago Style (17th ed.) Citation

Kaplan, Oscar J. Encyclopedia of Vocational Guidance. New York: Philosophical Library, 1948.

MLA (9th ed.) Citation

Kaplan, Oscar J. Encyclopedia of Vocational Guidance. Philosophical Library, 1948.