Geoffrey Poitras. (2002). Risk Management, Speculation, and Derivative Securities. ELSEVIER.
Lua i Stíl Chicago (17ú heag.)Geoffrey Poitras. Risk Management, Speculation, and Derivative Securities. ELSEVIER, 2002.
Lua MLA (8ú heag.)Geoffrey Poitras. Risk Management, Speculation, and Derivative Securities. ELSEVIER, 2002.
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