APA
"Harrington S. E., "Niehaus G. R., .Risk management and insurance. Boston: .
Chicago
"Harrington Scott E", "Niehaus Gregory R", .Risk management and insurance. Boston: .
Harvard
"Harrington S. E., "Niehaus G. R., .Risk management and insurance. Boston: .
MLA
"Harrington Scott E", "Niehaus Gregory R", .Boston: . .