Cita APA (7a ed.)

Ugelvik, T., & Dullum, J. (2012). Penal exceptionalism?: Nordic prison policy and practice. Routledge.

Cita Chicago Style (17a ed.)

Ugelvik, Thomas, y Jane Dullum. Penal Exceptionalism?: Nordic Prison Policy and Practice. London [u.a.]: Routledge, 2012.

Cita MLA (9a ed.)

Ugelvik, Thomas, y Jane Dullum. Penal Exceptionalism?: Nordic Prison Policy and Practice. Routledge, 2012.