Columbia subject headings:
Harvard subject headings:
City planning--Germany--Oranienburg--History.
Collective settlements--Germany--Oranienburg--History.
Eden Gemeinnützige Obstbau-Seidlung--History.
Housing--Germany--Oranienburg--History.
Vegetarians--Germany--Oranienburg--Societies, etc.--History.
Princeton subject headings:
Architecture and society--Germany--20th century.