Columbia subject headings:
Harvard subject headings:
Ambassadors--Mexico--Biography.
Diplomats--Mexico--Biography.
Iruegas, Gustavo, 1942-2008.
Iruegas, Gustavo.
Mexico--Foreign relations--20th century.
Princeton subject headings:
Diplomats--Mexico--Biography.
Iruegas, Gustavo, 1942-2008.
Mexico--Foreign relations--20th century.