Columbia subject headings:
Petén (Guatemala : Department)--Antiquities.
Tikal Site (Guatemala)
Uaxactún Site (Guatemala)
Harvard subject headings:
Guatemala--Antiquities.
Mayas--Antiquities
Tikal Site (Guatemala)
Uaxactún Site (Guatemala)
Princeton subject headings:
Petén (Guatemala : Dept.)--Antiquities.
Tikal Site (Guatemala)
Uaxactún Site (Guatemala)