Columbia subject headings:
Díaz Ordaz, Gustavo, 1911-1979.
Mexico--Politics and government--1946-1970.
Harvard subject headings:
Díaz Ordaz, Gustavo, 1911-1979.
Mexico--Politics and government--1946-1970
Princeton subject headings:
Díaz Ordaz, Gustavo, 1911-1979.
Mexico--Politics and government--1946-.