Cita APA (7a ed.)

Hare, R. D. (1999). Without conscience: The disturbing world of the psychopaths among us. Guilford Press.

Cita Chicago Style (17a ed.)

Hare, Robert D. Without Conscience: The Disturbing World of the Psychopaths Among Us. New York [u.a.]: Guilford Press, 1999.

Cita MLA (9a ed.)

Hare, Robert D. Without Conscience: The Disturbing World of the Psychopaths Among Us. Guilford Press, 1999.