Columbia subject headings:
Labor unions--Argentina--History--20th century.
Peronism.
Working class--Argentina--History--20th century.
Harvard subject headings:
Labor unions--Argentina--History--20th century
Peronism
Working class--Argentina--History--20th century.
Princeton subject headings:
Labor movement--Argentina--History--20th century.
Labor unions--Argentina--History--20th century.
Peronism.