Cita APA (7a ed.)

West, W. M., & West, R. (1936). The story of modern progress with a preliminary survey of eariler progress (New ed.). Allyn and Bacon.

Cita Chicago Style (17a ed.)

West, Willis Mason, y Ruth West. The Story of Modern Progress with a Preliminary Survey of Eariler Progress. New ed. Boston ; New York [etc.]: Allyn and Bacon, 1936.

Cita MLA (8a ed.)

West, Willis Mason, y Ruth West. The Story of Modern Progress with a Preliminary Survey of Eariler Progress. New ed. Allyn and Bacon, 1936.