Cita APA (7a ed.)

Libert, B., & Spector, J. (2010). 9 rules for successful crowdsourcing (1st edition.). FTPress Delivers.

Cita Chicago Style (17a ed.)

Libert, Barry, y Jon Spector. 9 Rules for Successful Crowdsourcing. 1st edition. Upper Saddle River, New Jersey: FTPress Delivers, 2010.

Cita MLA (9a ed.)

Libert, Barry, y Jon Spector. 9 Rules for Successful Crowdsourcing. 1st edition. FTPress Delivers, 2010.