Columbia subject headings:
Aircraft industry--Military aspects--Germany--History.
Aircraft industry--Military aspects--Great Britain--History.
Aircraft industry--Military aspects--United States--History.
Great Britain. Air Ministry.
Industrial mobilization--History--20th century.
World War, 1939-1945--Equipment and supplies--Planning.
Harvard subject headings:
Aircraft industry--Military aspects--Germany--History.
Aircraft industry--Military aspects--Great Britain--History.
Aircraft industry--Military aspects--United States--History.
Industrial mobilization--History--20th century.
World War, 1939-1945--Equipment and supplies--Planning.
Princeton subject headings:
Aircraft industry--Germany--Military aspects--History.
Aircraft industry--Great Britain--Military aspects--History.
Aircraft industry--United States--Military aspects--History.
Industrial mobilization--History--20th century.
World War, 1939-1945--Equipment and supplies--Planning.