Citazione Stile APA (7a Edizione)

Roosevelt, T., & O'Toole, P. (2012). In the words of Theodore Roosevelt: Quotations from the man in the arena. Cornell University Press.

Citazione stile Chigago Style (17a edizione)

Roosevelt, Theodore, e Patricia O'Toole. In the Words of Theodore Roosevelt: Quotations from the Man in the Arena. Ithaca: Cornell University Press, 2012.

Citatione MLA (9a ed.)

Roosevelt, Theodore, e Patricia O'Toole. In the Words of Theodore Roosevelt: Quotations from the Man in the Arena. Cornell University Press, 2012.