Columbia subject headings:
Indian chronology--Mexico--Congresses.
Indians of Mexico--History--Chronology--Congresses.
Mexico--Antiquities--Congresses.
Monte Albán Site (Mexico)--Congresses.
Harvard subject headings:
Excavations (Archaeology)--Mexico--Oaxaca (State)--Congresses.
Indian calendar--Mexico--Congresses.
Indian chronology--Mexico--Congresses.
Indians of Mexico--Mexico--Oaxaca (State)--Antiquities--Congresses.
Mixtec Indians--Antiquities--Congresses.
Mixtec calendar--Mexico--Oaxaca Valley--Congresses.
Mixtec pottery--Mexico--Oaxaca Valley--Congresses.
Monte Albán Site (Mexico)--Congresses.
Oaxaca (Mexico : State)--Antiquities--Congresses.
Oaxaca Valley (Mexico)--Antiquities--Congresses.
Time--Social aspects--Mexico--Oaxaca Valley--Congresses.
Princeton subject headings: