Columbia subject headings:
Indians of Mexico--Mexico--Xochicalco--Antiquities.
Mexico--Antiquities.
Xochicalco (Mexico)--Antiquities.
Harvard subject headings:
Indians of Mexico--Mexico--Xochicalco--Antiquities.
Mexico--Antiquities.
Morelos (Mexico : State)--Antiquities.
Quetzalcoatl (Mesoamerican deity)
Toltecs--Antiquities.
Xochicalco (Mexico)--Antiquities.
Xochicalco Site (Mexico)
Princeton subject headings: