Columbia subject headings:
Harvard subject headings:
Jews, Polish--Palestine.
Jews--Poland--History--1918-1945.
Palestine--Emigration and immigration--1929-1948.
Palestine--History--1917-1948
Poland--Emigration and immigration--1929-1948.
Princeton subject headings:
Jews, Polish--Palestine.
Jews--Poland--History--20th century.
Palestine--Emigration and immigration--20th century.
Palestine--History--1917-1948.
Poland--Emigration and immigration--20th century.