Williams, C. A. (1995). Risk management and insurance. New York: McGraw-Hill.
Chicago Style aipamenaWilliams, C Arthur. Risk Management and Insurance. New York: McGraw-Hill, 1995.
MLA aipamenaWilliams, C Arthur. Risk Management and Insurance. New York: McGraw-Hill, 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.