Columbia subject headings:
Harvard subject headings:
Excavations (Archaeology)--Mexico--Guanajuato (State)
Guanajuato (Mexico : State)--Antiquities.
Guanajuato (Mexico : State)--History.
Indians of Mexico--Mexico--Guanajuato (State)--Antiquities.
Indians of Mexico--Mexico--Guanajuato (State)--History.
Princeton subject headings:
Guanajuato (Mexico)--History.