APA (7th ed.) Zitazioa

Grier, D. A. (2013). Crowdsourcing for dummies. Wiley.

Chicago Style (17th ed.) Zitazioa

Grier, David Alan. Crowdsourcing for Dummies. Chichester [England]: Wiley, 2013.

MLA (9th ed.) Zitazioa

Grier, David Alan. Crowdsourcing for Dummies. Wiley, 2013.