Columbia subject headings:
Iran--History--20th century--Sources.
Mīrzāʼiyān, Shams al-Dīn.
Petroleum industry and trade--Political aspects--Iran--History--20th century.
Petroleum--Iran--History.
Spies--Iran--Biography.
World War, 1939-1945--Germany.
Harvard subject headings:
Iran--History--20th century--Sources.
Mīrzāʾiyān, Shams al-Dawlah.
Petroleum industry and trade--Iran--Political aspects--History--20th century.
Petroleum--Iran--History.
Spies--Iran--Biography.
World War, 1939-1945--Germany.
Princeton subject headings:
Iran--History--20th century.
Mīrzāyyān, Shams al-Dīn.
Petroleum industry and trade--Iran--Political aspects--History--20th century.
World War, 1939-1945--Germany.