Roosevelt, T., & O'Toole, P. (2012). In the words of Theodore Roosevelt: Quotations from the man in the arena. Cornell University Press.
Lua i Stíl Chicago (17ú heag.)Roosevelt, Theodore, agus Patricia O'Toole. In the Words of Theodore Roosevelt: Quotations from the Man in the Arena. Ithaca: Cornell University Press, 2012.
Lua MLA (9ú heag.)Roosevelt, Theodore, agus Patricia O'Toole. In the Words of Theodore Roosevelt: Quotations from the Man in the Arena. Cornell University Press, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.