Carl, L. P. (2005). Risk mananement: Concept and Guidance. USA: ESI International.
Trích dẫn kiểu ChicagoCarl, L. Pritchard. Risk Mananement: Concept and Guidance. USA: ESI International, 2005.
Deismireacht MLACarl, L. Pritchard. Risk Mananement: Concept and Guidance. USA: ESI International, 2005.
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