APA (7th ed.) Zitazioa

Assaf, M., Bonincontro, C., & Johnsen, S. (2005). Global sourcing & purchasing--post 9/11. J. Ross Pub..

Chicago Style (17th ed.) Zitazioa

Assaf, Michael, Cynthia Bonincontro, eta Stephen Johnsen. Global Sourcing & Purchasing--post 9/11. Boca Raton, FL: J. Ross Pub., 2005.

MLA (9th ed.) Zitazioa

Assaf, Michael, et al. Global Sourcing & Purchasing--post 9/11. J. Ross Pub., 2005.