Columbia subject headings:
Jews--Galicia (Poland and Ukraine)--History--19th century.
Jews--Galicia (Poland and Ukraine)--History--20th century.
Petroleum industry and trade--Galicia (Poland and Ukraine)--History--19th century.
Petroleum industry and trade--Galicia (Poland and Ukraine)--History--20th century.
Petroleum workers--Galicia (Poland and Ukraine)--History--19th century.
Petroleum workers--Galicia (Poland and Ukraine)--History--20th century.
Harvard subject headings:
Jews--Galicia (Poland and Ukraine)--History--19th century.
Jews--Galicia (Poland and Ukraine)--History--20th century.
Petroleum industry and trade--Galicia (Poland and Ukraine)--History--19th century.
Petroleum industry and trade--Galicia (Poland and Ukraine)--History--20th century.
Petroleum workers--Galicia (Poland and Ukraine)--History--19th century.
Petroleum workers--Galicia (Poland and Ukraine)--History--20th century.
Princeton subject headings: