Greene, M. R. (1981). Risk and insurance (5ª ed.). South-Western.
Chicago-viite (17. p.)Greene, Mark R. Risk and Insurance. 5ª ed. South-Western, 1981.
MLA-viite (9. p.)Greene, Mark R. Risk and Insurance. 5ª ed. South-Western, 1981.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.