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.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.