Le Bon, Gustave, 1841-1931. The crowd : a study of the popular mind / By Gustave Le Bon ; With a new introd. by Robert K. Merton. - New York : Viking Press, [1960]. - 207 p. ; 20 cm. - Compass books, C66 . - 301.158 . Translation of Psychologie des foules. Subjects--Topical Terms: Crowds. Dewey Class. No.: 301.158