Cita APA (7a ed.)

Holdren, A., St. Laurent, S., Nash, C., & Romano, R. (2012). Google AdWords. O'Reilly.

Cita Chicago Style (17a ed.)

Holdren, Anastasia, Simon St. Laurent, Courtney Nash, y Robert Romano. Google AdWords. Sebastapol, California: O'Reilly, 2012.

Cita MLA (9a ed.)

Holdren, Anastasia, et al. Google AdWords. O'Reilly, 2012.