APA (7th ed.) Citation

Duncan-Clark, S. J. (1972). The Progressive movement: Its principles and its programme. AMS Press.

Chicago Style (17th ed.) Citation

Duncan-Clark, S. J. The Progressive Movement: Its Principles and Its Programme. New York: AMS Press, 1972.

MLA (9th ed.) Citation

Duncan-Clark, S. J. The Progressive Movement: Its Principles and Its Programme. AMS Press, 1972.