Columbia subject headings:
Cárdenas, Lázaro, 1895-1970--Political and social views.
Mexico--Economic conditions--1918-
Mexico--Politics and government--1910-1946.
Harvard subject headings:
Cárdenas, Lázaro, 1895-1970--Political and social views.
Mexico--Economic conditions--1918-
Mexico--Politics and government--1910-1946.
Princeton subject headings:
Cárdenas, Lázaro, 1895-1970.
Mexico--Politics and government--1910-1946.