Arnoldi, J. (2007). Risk: An introduction. Polity Press.
Lua i Stíl Chicago (17ú heag.)Arnoldi, Jakob. Risk: An Introduction. Cambridge, England ; Malden, USA: Polity Press, 2007.
Lua MLA (9ú heag.)Arnoldi, Jakob. Risk: An Introduction. Polity Press, 2007.
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