Columbia subject headings:
India, South--Antiquities.
Sri Lanka--Antiquities.
Stone age--India, South.
Stone age--Sri Lanka.
Harvard subject headings:
India, South--Antiquities.
Sri Lanka--Antiquities.
Stone age--India, South.
Stone age--Sri Lanka.
Princeton subject headings:
India, South--Antiquities.
Sri Lanka--Antiquities.
Stone age--India, South.
Stone age--Sri Lanka.