Columbia subject headings:
Ethnohistory--Mexico--Congresses.
Indians of Mexico--Antiquities--Congresses.
Indians of Mexico--History--Congresses.
Harvard subject headings:
Ethnohistory--Mexico--Congresses.
Indians of Mexico--Congresses
Mexico--Antiquities--Congresses
Mexico--Church history--Congresses.
Mexico--Colonization--Congresses.
Mexico--History--Congresses.
Mexico--Religion--Congresses.
Princeton subject headings:
Ethnohistory--Mexico--Congresses.
Indians of Mexico--Antiquities--Congresses.
Indians of Mexico--History--Congresses.
Indians of Mexico--Religion--Congresses.
Mexico--Church history--Congresses.
Mexico--Colonization--Congresses.