Columbia subject headings:
Harvard subject headings:
Prussia, East (Poland and Russia)--Biography.
Prussia, East (Poland and Russia)--Emigration and immigration.
Schön, Heinz, 1926-
Shipwrecks--Baltic Sea.
Wilhelm Gustloff (Ship)
World War, 1939-1945--Evacuation of civilians--Prussia, East (Poland and Russia)
Princeton subject headings:
Prussia, East (Poland and Russia)--Biography.
Prussia, East (Poland and Russia)--Emigration and immigration.
Schön, Heinz, 1926-
Shipwrecks--Baltic Sea.
Wilhelm Gustloff (Ship)
World War, 1939-1945--Evacuation of civilians--Prussia, East (Poland and Russia).