Columbia subject headings:
Harvard subject headings:
Mammal populations--Scotland--Saint Kilda.
Population biology--Scotland--Saint Kilda.
Soay sheep--Ecology--Scotland--Saint Kilda.
Soay sheep--Selection--Scotland--Saint Kilda.
Princeton subject headings:
Mammal populations--Scotland--Saint Kilda.
Soay sheep--Ecology--Scotland--Saint Kilda.
Soay sheep--Selection--Scotland--Saint Kilda.