Cita APA (7a ed.)

Williamson, H. E. (1990). The corrections profession (1. print.). Sage.

Cita Chicago Style (17a ed.)

Williamson, Harold E. The Corrections Profession. 1. print. Newbury Park [u.a.]: Sage, 1990.

Cita MLA (8a ed.)

Williamson, Harold E. The Corrections Profession. 1. print. Sage, 1990.