Cita APA (7th ed.)
Duffey, R. B., & Saull, J. W. (2008). Managing risk: The human element. John Wiley & Sons Ltd..
Cita Chicago (17th ed.)
Duffey, R. B., i John Walton Saull. Managing Risk: The Human Element. Chichester, UK: John Wiley & Sons Ltd., 2008.
Cita MLA (9th ed.)
Duffey, R. B., i John Walton Saull. Managing Risk: The Human Element. John Wiley & Sons Ltd., 2008.
Atenció: Aquestes cites poden no estar 100% correctes.