Dyfyniad APA

Zimbardo Philip. (2009). Lucifer Effect: How good people turn evil. Rider ebury , Random House.

Dyfyniad Arddull Chicago

Zimbardo Philip. Lucifer Effect: How Good People Turn Evil. UK: Rider ebury , Random House, 2009.

Dyfyniad MLA

Zimbardo Philip. Lucifer Effect: How Good People Turn Evil. Rider ebury , Random House, 2009.

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