Columbia subject headings:
Andes Region--Antiquities.
Indian astronomy--Andes Region.
Indian astronomy--Peru.
Indians of South America--Andes Region--Antiquities.
Indians of South America--Andes Region--Mathematics.
Indians of South America--Peru--Antiquities.
Indians of South America--Peru--Mathematics.
Peru--Antiquities.
Harvard subject headings:
Indian astronomy--Peru.
Peru--Antiquities.
Princeton subject headings: