Unit Insignia

• History of the Artillery, Cavalry and Infantry Branch of Service Insignia (1976) Leon Laframboise
• History of the Combat Support Branches: Branch of Service Insignia (1977) Leon Laframboise
• History of the Administrative and Technical Services: Branch of Service Insignia (1986) Leon Laframboise
• US Army Heraldic Crests Barry Jason Stein
• The Collar Disc Story 1907-1999 L. Albert Scipio
• Encyclopedia of United States Army Insignia and Uniforms William K. Emerson
• Chevrons; Illustrated History and Catalog of U.S. Army Insignia William K. Emerson
• U.S. Army Soldiers and their Chevrons William K. Emerson
• G.I. Collector’s Guide Henri-Paul Enjames
• Doughboy to GI, US Army Clothing and Equipment 1900-1945 Kenneth Lewis