Columbia subject headings:
Harvard subject headings:
Cozumel Island (Mexico)--Antiquities.
Indians of Mexico--Mexico--Quintana Roo (State)--Antiquities.
Mason, Gregory, 1889-1968
Mason-Spinden Expedition, 1926.
Mayas--Mexico--Quintana Roo (State)--Antiquities.
Mexico--Antiquities.
Quintana Roo (Mexico : State)--Antiquities.
Quintana Roo (Mexico : State)--Description and travel.
Spinden, Herbert Joseph, 1879-1967--Travel--Mexico--Quintana Roo.
Yucatán (Mexico : State)--Antiquities.
Yucatán (Mexico : State)--Description and travel.
Princeton subject headings:
Mason-Spinden Expedition (1926)
Yucatán (Mexico : State)--Antiquities.
Yucatán (Mexico : State)--Description and travel.