Columbia subject headings:
Aeronautics, Military--United States--Abstracts.
United States. Air Force--Abstracts.
United States. Air Force. Historical Research Center--Abstracts.
Harvard subject headings:
Aeronautics, Military--United States--History--Sources--Bibliography--Catalogs.
United States. Air Force--Abstracts.
United States. Air Force--Officers--Archives.
United States. Air Force. Historical Research Center--Catalogs.
Princeton subject headings: