Columbia subject headings:
Germany--Emigration and immigration--Social aspects.
Immigrants--Cultural assimilation--Germany.
Russians--Germany--Social life and customs.
Harvard subject headings:
Germany--Emigration and immigration--Social aspects.
Immigrants--Cultural assimilation--Germany.
Russians--Germany--Social life and customs.
Princeton subject headings:
Germany--Emigration and immigration--Social aspects.
Immigrants--Cultural assimilation--Germany.
Russians--Germany--Social life and customs.