Columbia subject headings:
Harvard subject headings:
Art, Prehistoric--Denmark.
Art, Prehistoric--Sweden.
Commerce, Prehistoric--Denmark.
Commerce, Prehistoric--Sweden.
Denmark--Antiquities.
Mesolithic period--Denmark.
Mesolithic period--Sweden.
Sweden--Antiquities.
Princeton subject headings:
Art, Prehistoric--Scandinavia.
Commerce, Prehistoric--Scandinavia.
Mesolithic period--Scandinavia.
Scandinavia--Antiquities.