Columbia subject headings:
Cisterns--Mexico--Yucatán (State)
Maya architecture.
Water-supply--Mexico--Yucatán (State)--Management--History.
Harvard subject headings:
Cisterns--Mexico--Yucatán (State)
Maya architecture.
Mayas--Antiquities
Water-supply--Mexico--Yucatán (State)--Management--History.
Yucatán Peninsula--Antiquities.
Princeton subject headings:
Chultunes.
Rainwater--Yucatan Peninsula--History.
Water--Storage--Yucatán Peninsula--History.
Yucatán Peninsula--Antiquities.