Columbia subject headings:
Agriculture--Scotland--History.
Human settlements--Scotland--History.
Neolithic period--Scotland.
Scotland--Antiquities.
Harvard subject headings:
Excavations (Archaeology)--Scotland
Land settlement patterns, Prehistoric--Scotland.
Neolithic period--Scotland.
Paleoecology--Scotland.
Scotland--Antiquities.
Princeton subject headings:
Agriculture--Scotland--History.
Human settlements--Scotland--History.
Neolithic period--Scotland.
Scotland--Antiquities.