FRENKEL MICHAEL. (2005). RISK MANAGEMENT CHALLENGE AND OPPORTUNITY (2ND.). SPRINGER.
Lua i Stíl Chicago (17ú heag.)FRENKEL MICHAEL. RISK MANAGEMENT CHALLENGE AND OPPORTUNITY. 2ND. NEW YORK: SPRINGER, 2005.
Lua MLA (9ú heag.)FRENKEL MICHAEL. RISK MANAGEMENT CHALLENGE AND OPPORTUNITY. 2ND. SPRINGER, 2005.
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