APA (7th ed.) Citation

McDougall, W. (1939). The group mind: A sketch of the principles of collective psychology with some attempt to apply them to the interpretation of national life and character (1st cheap ed.). University Press.

Chicago Style (17th ed.) Citation

McDougall, William. The Group Mind: A Sketch of the Principles of Collective Psychology with Some Attempt to Apply Them to the Interpretation of National Life and Character. 1st cheap ed. Cambridge: University Press, 1939.

MLA (9th ed.) Citation

McDougall, William. The Group Mind: A Sketch of the Principles of Collective Psychology with Some Attempt to Apply Them to the Interpretation of National Life and Character. 1st cheap ed. University Press, 1939.

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