Columbia subject headings:
Harvard subject headings:
Animal introduction--Antarctica.
Animal introduction--South Georgia and South Sandwich Islands--South Georgia.
Mammals--Antarctica.
Mammals--Arctic regions.
Mammals--Ecology--Antarctica.
Mammals--Ecology--South Georgia and South Sandwich Islands--South Georgia.
Mammals--South Georgia and South Sandwich Islands--South Georgia.
Reindeer--Antarctica.
Reindeer--Arctic regions.
Reindeer--Ecology--Antarctica.
Reindeer--Ecology--South Georgia and South Sandwich Islands--South Georgia.
Reindeer--South Georgia and South Sandwich Islands--South Georgia.
Princeton subject headings:
Animal introduction--Antarctica.
Animal introduction--South Georgia Island.
Mammals--Antarctica--Ecology.
Mammals--Antarctica.
Mammals--Arctic regions.
Mammals--South Georgia Island--Ecology.
Mammals--South Georgia Island.
Reindeer--Antarctica--Ecology.
Reindeer--Antarctica.
Reindeer--Arctic regions.
Reindeer--South Georgia Island--Ecology.
Reindeer--South Georgia Island.