Cita APA (7a ed.)

Colt, G. H. (1991). The enigma of suicide. Summit Books.

Cita Chicago Style (17a ed.)

Colt, George H. The Enigma of Suicide. New York [u.a.]: Summit Books, 1991.

Cita MLA (9a ed.)

Colt, George H. The Enigma of Suicide. Summit Books, 1991.