Cita APA (7th ed.)
Garraty, J. A. (1972). A history of the world: The modern world. Harper & Row.
Cita Chicago (17th ed.)
Garraty, John A. A History of the World: The Modern World. New York: Harper & Row, 1972.
Cita MLA (9th ed.)
Garraty, John A. A History of the World: The Modern World. Harper & Row, 1972.
Atenció: Aquestes cites poden no estar 100% correctes.