APA aipamena

Freud ,Sigmund. (1991). On sexuality. Penguin Books.

Chicago Style aipamena

Freud ,Sigmund. On Sexuality. Penguin Books: Penguin Books, 1991.

MLA aipamena

Freud ,Sigmund. On Sexuality. Penguin Books, 1991.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.