Cita APA (7th ed.)
Cresson, W. P. (1922). The holy Alliance: The European background of the Monroe doctrine.
Cita Chicago (17th ed.)
Cresson, William Penn. The Holy Alliance: The European Background of the Monroe Doctrine. New York, 1922.
Cita MLA (9th ed.)
Cresson, William Penn. The Holy Alliance: The European Background of the Monroe Doctrine. 1922.
Atenció: Aquestes cites poden no estar 100% correctes.