Insurance Services Office Commercial Umbrella Analysis, September 2000 Edition
Nationwide Insurance Commercial Umbrella Liability Analysis, April 1996 Edition
Fireman's Fund Commercial Umbrella Analysis, March 1998 Edition
The Central National Insurance Umbrella Liability Analysis, May 1975 Edition
Admiral Insurance Analysis, August 1982 Edition
Industrial Underwriters Umbrella Liability Analysis, April 1987 Edition
Harbor Insurance Umbrella Analysis, February 1980 Edition
EMC Insurance Commercial Umbrella Coverage Analysis, October 1993 Edition
Northland Insurance Umbrella Liability Coverage Analysis, January 1997 Edition
Pawtucket Mutual Insurance Commercial Umbrella Liability Analysis