Columbia subject headings:
Harvard subject headings:
Sonora (Mexico : State)--Ethnic relations.
Sonora (Mexico : State)--History
Yaqui Indians--Government relations.
Yaqui Indians--History.
Yucatán (Mexico : State)--Ethnic relations.
Yucatán (Mexico : State)--History.
Princeton subject headings:
Yaqui Indians--Government relations.
Yaqui Indians--History.
Yaqui Indians--Social conditions.