APA (7th ed.) Citation

Le Bon, G. (1899). The psychology of socialism. The Macmillan co..

Chicago Style (17th ed.) Citation

Le Bon, Gustave. The Psychology of Socialism. New York: The Macmillan co., 1899.

MLA (9th ed.) Citation

Le Bon, Gustave. The Psychology of Socialism. The Macmillan co., 1899.

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