WILLIAM, C. A. (1985). Risk Management And Insurance C. Arthur William And Richard M. Heins. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)WILLIAM, C. Arthur. Risk Management And Insurance C. Arthur William And Richard M. Heins. McGraw-Hill, 1985.
Lua MLA (8ú heag.)WILLIAM, C. Arthur. Risk Management And Insurance C. Arthur William And Richard M. Heins. McGraw-Hill, 1985.
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