Dyfyniad APA

Petsko, G. A. (2008). The wisdom, and madness, of crowds. BioMed Central.

Dyfyniad Arddull Chicago

Petsko, Gregory A. The Wisdom, and Madness, of Crowds. BioMed Central, 2008.

Dyfyniad MLA

Petsko, Gregory A. The Wisdom, and Madness, of Crowds. BioMed Central, 2008.

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