Robert A. Watkins

• Battle Colors: Insignia and Aircraft Markings of the Eighth Air Force in World War II: Vol.1
• Battle colors
• Battle Colors Insignia And Aircraft Markings Of The Ninth Air Force In World War Ii
• Battle colors
• Battle Colors : Insignia and Aircraft Markings of the U. S. Army Air Forces in WWII
• Battle Colors Volume IV Vol. IV