Columbia subject headings:
Air pilots--India--Hyderabad (State)--Biography.
British--India--Hyderabad (State)--Biography.
Cotton, Sidney, 1894-1969.
Hyderabad (India : State)--History.
Harvard subject headings:
Air pilots--Australia--Biography
Cotton, Sidney, 1894-
Hyderabad (India)--History, Military.
India-Pakistan Conflict, 1947-1949--Sources.
Princeton subject headings: