Columbia subject headings:
Mayan languages--Writing.
Mayas--Antiquities.
Mexico--Antiquities.
Palenque Site (Mexico)
Harvard subject headings:
Indians of Mexico--Languages--Writing
Mayan languages--Writing
Mayas--Antiquities
Mexico--Antiquities.
Palenque Site (Mexico)
Princeton subject headings:
Mayan languages--Writing.
Mayas--Antiquities.
Mexico--Antiquities.
Palenque Site (Mexico)