Citazione Stile APA (7a Edizione)

Doyle, A. (2021). Free speech: And why it matters. Constable.

Citazione stile Chigago Style (17a edizione)

Doyle, Andrew. Free Speech: And Why It Matters. London: Constable, 2021.

Citatione MLA (9a ed.)

Doyle, Andrew. Free Speech: And Why It Matters. Constable, 2021.