Cita APA (7a ed.)

Walmsley, R., & Großbritannien Home Office Research and Planning Unit. (1989). Special security units Home Office research study.

Cita Chicago Style (17a ed.)

Walmsley, Roy, y Großbritannien Home Office Research and Planning Unit. "Special Security Units." Home Office Research Study 1989.

Cita MLA (8a ed.)

Walmsley, Roy, y Großbritannien Home Office Research and Planning Unit. "Special Security Units." Home Office Research Study, 1989.