Columbia subject headings:
Hidalgo (Mexico : State)--Antiquities.
Indians of Mexico--Mexico--Hidalgo (State)--Antiquities.
Harvard subject headings:
Hidalgo (Mexico : State)--Antiquities.
Indians of Mexico--Mexico--Hidalgo (State)--Antiquities.
Princeton subject headings:
Archaeology--Mexico--Hidalgo (State)--Congresses.
Hidalgo (Mexico : State)--Antiquities--Congresses.
Indians of Mexico--Mexico--Hidalgo (State)--Antiquities--Congresses.