Columbia subject headings:
Cuetzalan del Progreso (Mexico)--Civilization--20th century--Congresses.
Cuetzalan del Progreso (Mexico)--Social conditions--20th century--Congresses.
Nahuas--Mexico--Cuetzalan del Progreso.
Harvard subject headings:
Cuetzalan del Progreso (Mexico)--History--20th century.
Cuetzalan del Progreso (Mexico)--Social conditions--20th century.
Nahuas--Mexico--Cuetzalan del Progreso--History--20th century.
Nahuas--Mexico--Cuetzalan del Progreso--Social conditions.
Princeton subject headings:
Cuetzalan del Progreso (Mexico)--History--20th century.
Cuetzalan del Progreso (Mexico)--Social conditions--20th century.
Nahuas--Mexico--Cuetzalan del Progreso--History--20th century.
Nahuas--Mexico--Cuetzalan del Progreso--Social conditions.