Columbia subject headings:
Harvard subject headings:
ATE Concepción del Uruguay (Association : Concepción del Uruguay, Argentina)
Labor unions--Argentina--Concepción del Uruguay--Officials and employees.
Lúgaro, Sebastián, 1899-1983
Princeton subject headings:
ATE Concepción del Uruguay (Association : Concepción del Uruguay, Argentina)--History--20th century.
Labor unions--Argentina--Concepción del Uruguay--Officials and employees--Biography.
Lúgaro, Sebastián, 1899-1983.