Cita APA (7a ed.)

Libert, B., & Spector, J. (2010). Crowdsourcing your sales: Let your customers sell themselves (and others) (1st edition.). FTPress Delivers.

Cita Chicago Style (17a ed.)

Libert, Barry, y Jon Spector. Crowdsourcing Your Sales: Let Your Customers Sell Themselves (and Others). 1st edition. Upper Saddle River, New Jersey: FTPress Delivers, 2010.

Cita MLA (9a ed.)

Libert, Barry, y Jon Spector. Crowdsourcing Your Sales: Let Your Customers Sell Themselves (and Others). 1st edition. FTPress Delivers, 2010.