Columbia subject headings:
Mexico--History--1867-1910.
Mexico--Social life and customs.
Social classes--Mexico.
Harvard subject headings:
Jockey Club (Mexico City, Mexico)
Mexico--History--1867-1910.
Mexico--Social conditions.
Mexico--Social life and customs.
Social classes--Mexico
Princeton subject headings:
Jockey Club (Mexico City, Mexico)
Mexico--History--1867-1910.
Mexico--Social conditions.
Mexico--Social life and customs.
Social classes--Mexico.