Lloyd's of London Umbrella Liability Analysis, May 1983 Edition
Commercial Union Insurance Umbrella Analysis, May 1987 Edition
Lexington Insurance Umbrella Liability Analysis, December 1990 Edition
Hanover Insurance Commercial Umbrella Analysis, September 1998 Edition
United Pacific/Reliance Excess Umbrella Coverage Analysis, November 1985
National Union Fire Insurance Commercial Umbrella Liability Analysis, June 1993 Edition
General Accident Insurance Company Excess Catatrophe Liability Analysis, August-October 1989 Edition
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