Columbia subject headings:
Harvard subject headings:
Lahn-Dill-Kreis (Germany)--History, Military.
Military weapons--Germany--History--20th century.
Rocketry--Germany--History.
Westerwald (Germany)--History, Military.
World War, 1939-1945--Aerial operations, German.
World War, 1939-1945--Germany--Lahn-Dill-Kreis.
World War, 1939-1945--Germany--Westerwald.
World War, 1939-1945--Technology.
Princeton subject headings:
Lahn-Dill-Kreis (Germany)--History, Military.
Military weapons--Germany--History--20th century.
Rocketry--Germany--History.
Westerwald (Germany)--History, Military.
World War, 1939-1945--Aerial operations, German.
World War, 1939-1945--Germany--Lahn-Dill-Kreis.
World War, 1939-1945--Germany--Westerwald.
World War, 1939-1945--Technology.