Columbia subject headings:
Harvard subject headings:
Europe--Emigration and immigration--Dictionaries--German.
Europe--Emigration and immigration--History.
Political refugees--Europe--Dictionaries--German.
Political refugees--Europe--History.
Refugees--Europe--Dictionaries--German.
Refugees--Europe--History.
Religious refugees--Europe--Dictionaries--German.
Religious refugees--Europe--History.
Princeton subject headings:
Europe--Emigration and immigration--History.