APA aipamena

Drexler, K. (2012). Keys to online learning. Pearson.

Chicago Style aipamena

Drexler, Kateri...[et.al]. Keys to Online Learning. Boston: Pearson, 2012.

MLA aipamena

Drexler, Kateri...[et.al]. Keys to Online Learning. Pearson, 2012.