Dyfyniad APA

Mackay, C. (1932). Extraordinary popular delusions and madness of crowds (ed.). Farrar, Straus and Giroux.

Dyfyniad Arddull Chicago

Mackay, Charles. Extraordinary Popular Delusions and Madness of Crowds. ed. New York: Farrar, Straus and Giroux, 1932.

Dyfyniad MLA

Mackay, Charles. Extraordinary Popular Delusions and Madness of Crowds. ed. Farrar, Straus and Giroux, 1932.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.