Cita APA (7a ed.)

Salt, S. (2011). Social location marketing: Outshining your competitors on Foursquare, Gowalla, Yelp & other location sharing sites. Que.

Cita Chicago Style (17a ed.)

Salt, Simon. Social Location Marketing: Outshining Your Competitors on Foursquare, Gowalla, Yelp & Other Location Sharing Sites. Indianapolis, Ind.: Que, 2011.

Cita MLA (8a ed.)

Salt, Simon. Social Location Marketing: Outshining Your Competitors on Foursquare, Gowalla, Yelp & Other Location Sharing Sites. Que, 2011.