Cita APA (7a ed.)

Wertham, F. (1966). A sign for Cain: An exploration of human violence. Hale.

Cita Chicago Style (17a ed.)

Wertham, Fredric. A Sign for Cain: An Exploration of Human Violence. London: Hale, 1966.

Cita MLA (9a ed.)

Wertham, Fredric. A Sign for Cain: An Exploration of Human Violence. Hale, 1966.