WILLIAMS, C., & HEINS, R. M. (1989). Risk management and insurance.-- ed.6. McGraw-Hill.
Chicago Style aipamenaWILLIAMS, C.Arthur, and Richard M. HEINS. Risk Management and Insurance.-- Ed.6. New York: McGraw-Hill, 1989.
MLA aipamenaWILLIAMS, C.Arthur, and Richard M. HEINS. Risk Management and Insurance.-- Ed.6. McGraw-Hill, 1989.
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