Columbia subject headings:
Cairns--Scotland--Sutherland.
Megalithic monuments--Scotland--Sutherland.
Neolithic period--Scotland--Sutherland.
Passage Graves culture--Scotland--Sutherland.
Sutherland (Scotland)--Antiquities.
Harvard subject headings:
Cairns--Scotland--Sutherland.
Megalithic monuments--Scotland--Sutherland.
Neolithic period--Scotland--Sutherland.
Passage Graves culture--Scotland--Sutherland.
Sutherland (Scotland)--Antiquities.
Princeton subject headings:
Cairns--Scotland--Sutherland.
Megalithic monuments--Scotland--Sutherland.
Neolithic period--Scotland--Sutherland.
Passage Graves culture--Scotland--Sutherland.
Sutherland (Scotland)--Antiquities.