APA (7e ed.) Bronvermelding

West, W. M. (1923). The story of modern progress: With a preliminary survey of earlier progress (Rev. ed.). Allyn and Bacon.

Chicago (17e ed.) Bronvermelding

West, Willis M. The Story of Modern Progress: With a Preliminary Survey of Earlier Progress. Rev. ed. Boston ; New York [etc.]: Allyn and Bacon, 1923.

MLA (8e ed.) Bronvermelding

West, Willis M. The Story of Modern Progress: With a Preliminary Survey of Earlier Progress. Rev. ed. Allyn and Bacon, 1923.