APA (7th ed.) Citation

McDougall, W. (1963). An Introduction to Social Psychology (23rd ed.). Methuen & Co..

Chicago Style (17th ed.) Citation

McDougall, William. An Introduction to Social Psychology. 23rd ed. London: Methuen & Co., 1963.

MLA (9th ed.) Citation

McDougall, William. An Introduction to Social Psychology. 23rd ed. Methuen & Co., 1963.