Columbia subject headings:
Ethnology--Europe.
Human beings--Effect of environment on.
Human geography--Europe.
Nationalism.
Race.
Harvard subject headings:
Ethnology--Europe
Human beings--Effect of environment on
Human geography--Europe
Nationalism
Race
Princeton subject headings:
Ethnology--Europe.
Human beings--Effect of environment on.
Human geography--Europe.
Nationalism and nationality.
Race.