Gaya APA

Kraynak, R, W, &, J. (2015). GRE for dummies, quick prep edition . New Jersey: John Wiley & Sons, Inc..

Gaya MLA

Kraynak, Ron, Woldoff, &, Joe. "GRE for dummies, quick prep edition". New Jersey: John Wiley & Sons, Inc., 2015. Text.