Columbia subject headings:
Communists--Brazil--Biography.
Duarte, José, 1907-
Labor unions--Organizing--Brazil--History.
Harvard subject headings:
Communists--Brazil--Biography
Duarte, José, 1907-
Labor unions--Organizing--Brazil--History.
Princeton subject headings:
Communists--Brazil--Biography.
Duarte, José, 1907-
Labor leaders--Brazil--Biography.
Labor unions--Organizing--Brazil--History.