Cita APA (7a ed.)
National Underwriter Company. (1989). National underwriter (Property & casualty/risk & benefits management ed.). [National Underwriter Co.].
Cita Chicago Style (17a ed.)
National Underwriter Company. National Underwriter. Property & casualty/risk & benefits management ed. [Chicago, IL]: [National Underwriter Co.], 1989.
Cita MLA (9a ed.)
National Underwriter Company. National Underwriter. Property & casualty/risk & benefits management ed. [National Underwriter Co.], 1989.
Precaución: Estas citas no son 100% exactas.