Columbia subject headings:
Germany--Emigration and immigration--Sources.
Jews--Germany--Migrations--Sources.
Rublee, George, 1868-1957.
Harvard subject headings:
Germany--Emigration and immigration--Sources.
Jews--Germany--Migrations--Sources.
Rublee, George, 1868-1957.
Princeton subject headings:
Germany--Emigration and immigration--Sources.
Jews--Germany--Migrations--Sources.
Rublee, George, 1868-1957.