K.k. · K. Keller · Kurt H. Keller · Kurt K Keller
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| United States Army Shoulder Patches and Related Insignia from World War I to Korea: Volume 3: Army Groups, Armies and Corps | 978-0-7643-1921-1 (0-7643-1921-3) | 2004 | William Keller |
| US Army Shoulder Patches and Related Insignia: From WWI to Korea - 41st Division to 106th Division | 978-0-7643-1502-2 (0-7643-1502-1) | 2002 | " |