Cita APA (7th ed.)

Jennings, W. W. (1928). Introduction to American economic history. Thomas Y. Crowell.

Cita Chicago (17th ed.)

Jennings, Walter Wilson. Introduction to American Economic History. New York: Thomas Y. Crowell, 1928.

Cita MLA (9th ed.)

Jennings, Walter Wilson. Introduction to American Economic History. Thomas Y. Crowell, 1928.