Παραπομπή APA
Williams, C. A., & Smith, M. L. (1998). Risk management and insurance (8th ed.). New York: McGraw-Hill.
Παραπομπή Chicago StyleWilliams, Chester Arthur, and Michael L. Smith. Risk Management and Insurance. 8th ed. New York: McGraw-Hill, 1998.
Παραπομπή MLAWilliams, Chester Arthur, and Michael L. Smith. Risk Management and Insurance. 8th ed. New York: McGraw-Hill, 1998.
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