Cita APA (7th ed.)
Birley, R. (1951). Speeches and Documents in American History: 1818-1865. Oxford University.
Cita Chicago (17th ed.)
Birley, Robert. Speeches and Documents in American History: 1818-1865. Londres, Inglaterra: Oxford University, 1951.
Cita MLA (9th ed.)
Birley, Robert. Speeches and Documents in American History: 1818-1865. Oxford University, 1951.
Atenció: Aquestes cites poden no estar 100% correctes.