Cita APA (7a ed.)

Johnson, C. L. (1978). A comparative study of vocational interest in university law enforcement students, police recruits, and men in general. Xerox Univ. Microfilms.

Cita Chicago Style (17a ed.)

Johnson, Charles L. A Comparative Study of Vocational Interest in University Law Enforcement Students, Police Recruits, and Men in General. Ann Arbor, Mich: Xerox Univ. Microfilms, 1978.

Cita MLA (9a ed.)

Johnson, Charles L. A Comparative Study of Vocational Interest in University Law Enforcement Students, Police Recruits, and Men in General. Xerox Univ. Microfilms, 1978.