Columbia subject headings:
Indians of Mexico--Mexico--Sonora (State)--Congresses.
Mexico--Antiquities--Congresses.
Sonora (Mexico : State)--Antiquities--Congresses.
Sonora (Mexico : State)--Description and travel--Congresses.
Harvard subject headings:
Indians of Mexico--Mexico--Sonora (State)--Congresses.
Mexico--Antiquities--Congresses.
Sonora (Mexico : State)--Antiquities--Congresses.
Sonora (Mexico : State)--Description and travel--Congresses.
Princeton subject headings:
Indians of Mexico--Mexico--Sonora (State)--Congresses.
Mexico--Antiquities--Congresses.
Sonora (Mexico : State)--Antiquities--Congresses.
Sonora (Mexico : State)--Description and travel--Congresses.