Citazione Stile APA (7a Edizione)

Citizenship Education Project. (1955). When men are free: Premises of American liberty (2. print.). Houghton Mifflin.

Citazione stile Chigago Style (17a edizione)

Citizenship Education Project. When Men Are Free: Premises of American Liberty. 2. print. Boston: Houghton Mifflin, 1955.

Citatione MLA (9a ed.)

Citizenship Education Project. When Men Are Free: Premises of American Liberty. 2. print. Houghton Mifflin, 1955.