Columbia subject headings:
Archaeoastronomy.
Indian astronomy--Central America.
Indian astronomy--Mexico.
Maya astronomy.
Harvard subject headings:
Archaeoastronomy
Archaeoastronomy--Central America.
Archaeoastronomy--Mexico.
Indian astronomy--Central America
Indian astronomy--Mexico
Maya astronomy.
Princeton subject headings:
Archaeoastronomy.
Indian astronomy--Central America.
Indian astronomy--Mexico.
Maya astronomy.