Cita APA (7a ed.)

Sommer, R. (1976). The end of imprisonment. Oxford Univ. Press.

Cita Chicago Style (17a ed.)

Sommer, Robert. The End of Imprisonment. London [u.a.]: Oxford Univ. Press, 1976.

Cita MLA (9a ed.)

Sommer, Robert. The End of Imprisonment. Oxford Univ. Press, 1976.