APA aipamena

Freeman, R. E. a. (2015). Bridging the Value Gap. Harpercollins.

Chicago Style aipamena

Freeman, R. Edward; auster. Bridging the Value Gap. Noida: Harpercollins, 2015.

MLA aipamena

Freeman, R. Edward; auster. Bridging the Value Gap. Harpercollins, 2015.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.