Hubbard, D. W. (2009). The failure of risk management: Why it's broken and how to fix it. John Wiley.
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Chicago Style (17th ed.) Zitazioa
Hubbard, Douglas W. The Failure of Risk Management: Why It's Broken and How to Fix It. New Jersy: John Wiley, 2009.
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MLA (9th ed.) Zitazioa
Hubbard, Douglas W. The Failure of Risk Management: Why It's Broken and How to Fix It. John Wiley, 2009.
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Kontuz: berrikusi erreferentzia hauek erabili aurretik.