Columbia subject headings:
Harvard subject headings:
Industries--Germany--Ludwigshafen am Rhein.
Interessengemeinschaft Farbenindustrie Aktiengesellschaft.
World War, 1939-1945--Aerial operations
World War, 1939-1945--Destruction and pillage--Germany--Ludwigshafen am Rhein.
Princeton subject headings:
Industries--Germany--Ludwigshafen am Rhein.
Interessengemeinschaft Farbenindustrie Aktiengesellschaft.
World War, 1939-1945--Aerial operations.
World War, 1939-1945--Destruction and pillage--Germany--Ludwigshafen.