Columbia subject headings:
Christiania (Copenhagen, Denmark)
Collective settlements--Denmark--History.
Communitarianism--Denmark--History.
Harvard subject headings:
Christiania (Copenhagen, Denmark)
Collective settlements--Denmark--History.
Communitarianism--Denmark--History.
Sociology, Urban--Denmark--History.
Princeton subject headings:
Christiania (Copenhagen, Denmark)
Collective settlements--Denmark--History.
Communitarianism--Denmark--History.