Columbia subject headings:
Harvard subject headings:
Chad--History--20th century.
Chad--Social life and customs--20th century.
Colonial administrators--Chad--Biography.
Colonial administrators--France--Biography
Diplomats--France--Biography
History, Modern--20th century
Mazeyrac, Robert.
Princeton subject headings:
Chad--History--20th century.
Colonial administrators--Chad--Biography.
Colonial administrators--France--Biography.
Diplomats--France--Biography.
History, Modern--20th century.
Mazeyrac, Robert.