*20th ° AL?
Cate, James Lea, 1899- ed.
U. S. Air Force. USAF Historical Division. The Army Forces in World War II ... e1948-553 (Card 3)
Another copy. 2v. 26cm
Incomplete: v.]. and 2 only.
1. U. S. Army Air Forces. 2. World War, 1939- 19l5--Aerial operations, American. I. Craven, Wesley Frank, 1905- ed. II. Cate, James Lea, 1899- ed. ITI. Title.