APA-čujuhus (7. p.)

Williams, C. A., & .Heins, R. M. (1981). Risk management and insurance (4th ed.). McGraw-Hill.

Chicago-čujuhus (17. p.)

Williams, C. Arthur, juo Richard M. .Heins. Risk Management and Insurance. 4th ed. New York: McGraw-Hill, 1981.

MLA-čujuhus (9. p.)

Williams, C. Arthur, juo Richard M. .Heins. Risk Management and Insurance. 4th ed. McGraw-Hill, 1981.

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