SHEARING, C. [., & STENNING, P. C. [. (1986). Private policing. Sage.
Lua i Stíl Chicago (17ú heag.)SHEARING, Clifford [ed.], agus Philip C [ed.] STENNING. Private Policing. Newbury Park: Sage, 1986.
Lua MLA (9ú heag.)SHEARING, Clifford [ed.], agus Philip C [ed.] STENNING. Private Policing. Sage, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.