Cita APA (7th ed.)
Hattersley, M. (2012). Google+ companion. Wiley.
Cita Chicago (17th ed.)
Hattersley, Mark. Google+ Companion. Indianapolis, Ind.: Wiley, 2012.
Cita MLA (9th ed.)
Hattersley, Mark. Google+ Companion. Wiley, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.