Gaya APA

Fridson, M, S. (1996). Extraordinary Popular Delusions and the Madness of Crowds & Confusion de Confusiones . New York: John Wiley & Sons.

Gaya MLA

Fridson, Martin, S.. "Extraordinary Popular Delusions and the Madness of Crowds & Confusion de Confusiones". New York: John Wiley & Sons, 1996. Text.