Columbia subject headings:
Frey, Ernst, 1915-
Jewish communists--Austria--Vienna.
Jewish soldiers.
Jews--Austria--Vienna--Biography.
Vienna (Austria)--Biography.
Vietnam--History, Military.
Vietnam--History--20th century.
World War, 1939-1945--Jews--Austria--Vienna.
Harvard subject headings:
Frey, Ernst, 1915-
Indochinese War, 1946-1954.
Jews--Austria--Vienna--Biography.
Vietnam--History, Military.
Vietnam--History--20th century.
World War, 1939-1945--Jews--Austria--Vienna.
Princeton subject headings:
Frey, Ernst, 1915-
Jewish communists--Austria--Vienna.
Jewish soldiers.
Jews--Austria--Vienna--Biography.
Vienna (Austria)--Biography.
Vietnam--History, Military.
Vietnam--History--20th century.
World War, 1939-1945--Jews--Austria--Vienna.