Cita APA (7th ed.)

Link, W. A., & Link, A. S. (1993). American epoch: A history of the United States since 1900 (7th ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Link, William A., i Arthur Stanley Link. American Epoch: A History of the United States Since 1900. 7th ed. New York: McGraw-Hill, 1993.

Cita MLA (9th ed.)

Link, William A., i Arthur Stanley Link. American Epoch: A History of the United States Since 1900. 7th ed. McGraw-Hill, 1993.