Birley, R. Speeches and Documents in American History. Oxford University Press.
Citazione stile Chigago Style (17a edizione)Birley, Robert. Speeches and Documents in American History. London [u.a.]: Oxford University Press.
Citatione MLA (8a ed.)Birley, Robert. Speeches and Documents in American History. Oxford University Press.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.