APA (7 वां संस्करण) प्रशस्ति पत्र
Frenkel, M., Rudolf, M., & Hommel, U. (2005). Risk Management: Challenge and Opportunity (Second Revised and Enlarged Edition.). Springer Berlin Heidelberg. https://doi.org/10.1007/b138437
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Frenkel, Michael, Markus Rudolf, और Ulrich Hommel. Risk Management: Challenge and Opportunity. Second Revised and Enlarged Edition. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. https://doi.org/10.1007/b138437.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Frenkel, Michael, et al. Risk Management: Challenge and Opportunity. Second Revised and Enlarged Edition. Springer Berlin Heidelberg, 2005. https://doi.org/10.1007/b138437.
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