The Central National Insurance Umbrella Liability Analysis, May 1975 Edition
Kemper Group Comprehensive Catastrophe Liability Coverage Analysis, June 1990 Edition
Industrial Underwriters Umbrella Liability Analysis, April 1987 Edition
The Travelers Indemnity Catastrophe Umbrella Analysis, March 1990 Edition
EMC Insurance Commercial Umbrella Coverage Analysis, October 1993 Edition
Northland Insurance Umbrella Liability Coverage Analysis, January 1997 Edition
Kemper Group Commercial Catastrophe Liability Coverage Analysis, August 1994 Edition
Excelsior Insurance Commercial Umbrella Liability Analysis, January 1991 Edition
Pawtucket Mutual Insurance Commercial Umbrella Liability Analysis
Zurich-American Insurance Custom Cover Analysis, July 1988 Edition