APA (7th ed.) Citation

Pitkin, W. B., & Harrel, R. F. (1931). Vocational studies in journalism. Columbia Univ. Press.

Chicago Style (17th ed.) Citation

Pitkin, Walter B., and Robert F. Harrel. Vocational Studies in Journalism. New York, NY: Columbia Univ. Press, 1931.

MLA (9th ed.) Citation

Pitkin, Walter B., and Robert F. Harrel. Vocational Studies in Journalism. Columbia Univ. Press, 1931.