APA aipamena

Schmidt,Eric, & Rosenberg, J. (2007). How Google works. HBS Press.

Chicago Style aipamena

Schmidt,Eric, and Jonathan Rosenberg. How Google Works. HBS Press, 2007.

MLA aipamena

Schmidt,Eric, and Jonathan Rosenberg. How Google Works. HBS Press, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.