APA (7th ed.) Zitazioa

Duffey, R. B., & Saull, J. W. (2008). Managing risk: The human element. John Wiley & Sons Ltd..

Chicago Style (17th ed.) Zitazioa

Duffey, R. B., eta John Walton Saull. Managing Risk: The Human Element. Chichester, UK: John Wiley & Sons Ltd., 2008.

MLA (9th ed.) Zitazioa

Duffey, R. B., eta John Walton Saull. Managing Risk: The Human Element. John Wiley & Sons Ltd., 2008.