Cita APA (7a ed.)

Freud, S. (1950). Beyond the pleasure principle. the Hogarth pr.

Cita Chicago Style (17a ed.)

Freud, Sigmund. Beyond the Pleasure Principle. London: the Hogarth pr, 1950.

Cita MLA (9a ed.)

Freud, Sigmund. Beyond the Pleasure Principle. the Hogarth pr, 1950.