Columbia subject headings:
Calles, Plutarco Elías, 1877-1945--Archives--Periodicals.
Mexico--History--1910-1946--Periodicals.
Mexico--History--1910-1946--Sources--Periodicals.
Harvard subject headings:
Calles, Plutarco Elías, 1877-1945--Archives--Periodicals.
Mexico--History--1910-1946--Periodicals.
Mexico--History--1910-1946--Sources--Periodicals.
Princeton subject headings:
Calles, Plutarco Elías, 1877-1945--Archives--Periodicals.
Mexico--History--1910-1946--Sources--Periodicals.
Mexico--Politics and government--1910-1946--Sources--Periodicals.
Periodicals.