Columbia subject headings:
Harvard subject headings:
Huerta, Victoriano, 1845-1916.
Labor movement--Mexico--History.
Mexico--Politics and government--1910-1946.
Princeton subject headings:
Huerta, Victoriano, 1845-1916.
Labor movement--Mexico.
Labor policy--Mexico.
Mexico--History--1910-1946.
Mexico--Politics and government--1910-1946.