APA (7th ed.) Citation

McDougall, W. (1918). An introduction to social psychology / by W. McDougall (13th ed.). Methuen.

Chicago Style (17th ed.) Citation

McDougall, W. An Introduction to Social Psychology / by W. McDougall. 13th ed. Methuen, 1918.

MLA (9th ed.) Citation

McDougall, W. An Introduction to Social Psychology / by W. McDougall. 13th ed. Methuen, 1918.

Warning: These citations may not always be 100% accurate.