Citazione Stile APA (7a Edizione)

Freud,Sigmund, & Richards,Angela. (1970). On sexuality: Three essays on the theory of sexuality and other works. Penguin.

Citazione stile Chigago Style (17a edizione)

Freud,Sigmund, e Richards,Angela. On Sexuality: Three Essays on the Theory of Sexuality and Other Works. Harmondsworth,: Penguin, 1970.

Citatione MLA (8a ed.)

Freud,Sigmund, e Richards,Angela. On Sexuality: Three Essays on the Theory of Sexuality and Other Works. Penguin, 1970.