Citazione Stile APA (7a Edizione)

Hospers, J. (1971). Libertarianism, A political philosophy for tomorrow (Primera edición.). Reason Press.

Citazione stile Chigago Style (17a edizione)

Hospers, John. Libertarianism, A Political Philosophy for Tomorrow. Primera edición. Santa Bárbara: Reason Press, 1971.

Citatione MLA (8a ed.)

Hospers, John. Libertarianism, A Political Philosophy for Tomorrow. Primera edición. Reason Press, 1971.