APA aipamena

Hagel John & Brown John Seely. (2005). The Only Sustainable Edge. Harvard Way,Boston, MA.

Chicago Style aipamena

Hagel John and Brown John Seely. The Only Sustainable Edge. USA: Harvard Way,Boston, MA, 2005.

MLA aipamena

Hagel John and Brown John Seely. The Only Sustainable Edge. Harvard Way,Boston, MA, 2005.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.