General Orders No. 1 - 8: U.S. Revenue Cutter Service. July, 1895. (Treasury Department, Document No. 2020. Office of Secretary. Division of Revenue Cutter Service. General orders modifying the 1894 Regulations regarding enlistments, discharges, and the proper way to display the Revenue Ensign).
U.S. Coast Guard Enlisted Ratings; a Department of Veterans Affairs Publication, (includes official abbreviations).
Recruiting Handbook, 1942
Personnel Bulletin 76-44: Enlisted Ratings Guide: Abbreviations, Precedence and Qualifications, 16 May 1944.
ENLISTED RATINGS QUALIFICATIONS MANUAL, CG-311, 10 May 1967 plus eight Amendments to 10 November 1971.
1915-2011: U.S. Coast Guard Enlisted Ratings, Rating Specialty Marks & Distinguishing Marks, Warrant Officer & Chief Warrant Officer Specialty Devices, 2011, a detailed, illustrated guide written by CWO Dana Lewis, USCG (Ret.)
U.S. Navy & Coast Guard Enlisted Ratings, Insignia & Specialty Marks, 1886-Present, by John A. Stacey, circa 1985.
U.S. Coast Guard Heraldry, COMDINST M5200.14A, (2011)