APA (7th ed.) Citation

Donagan, A., & Donagan, B. (1965). Philosophy of history (2nd printing.). The Macmillan Company [etc.].

Chicago Style (17th ed.) Citation

Donagan, Alan, and Barbara Donagan. Philosophy of History. 2nd printing. New York [etc.]: The Macmillan Company [etc.], 1965.

MLA (9th ed.) Citation

Donagan, Alan, and Barbara Donagan. Philosophy of History. 2nd printing. The Macmillan Company [etc.], 1965.