Columbia subject headings:
Aeronautics, Military--Soviet Union--History--Pictorial works.
Aeronautics--Soviet Union--History--Pictorial works.
Harvard subject headings:
Aeronautics, Military--Soviet Union--History--Pictorial works.
Aeronautics--Soviet Union--History--Pictorial works.
Chkalov, Valeriĭ Pavlovich, 1904-1938
Princeton subject headings:
Aeronautics, Military--Soviet Union--History--Pictorial works.
Aeronautics--Soviet Union--History--Pictorial works.