APA (7th ed.) Zitazioa

ebrary, Inc, Savin-Baden, M., & Wilkie, K. (2006). Problem-based learning online. Open University Press.

Chicago Style (17th ed.) Zitazioa

ebrary, Inc, Maggi Savin-Baden, eta Kay Wilkie. Problem-based Learning Online. Maidenhead: Open University Press, 2006.

MLA (9th ed.) Zitazioa

ebrary, Inc, et al. Problem-based Learning Online. Open University Press, 2006.