APA-Zitierstil (7. Ausg.)

Howell, J. C. (1973). A comparison of probation officers and volunteers. Univ. Microfilms.

Chicago-Zitierstil (17. Ausg.)

Howell, James Carlton. A Comparison of Probation Officers and Volunteers. Ann Arbor, Mich: Univ. Microfilms, 1973.

MLA-Zitierstil (9. Ausg.)

Howell, James Carlton. A Comparison of Probation Officers and Volunteers. Univ. Microfilms, 1973.