"trade-union movement" . . . "national trade union federation in Argentina" . "organized labor" . "labor" . . . "Argentine trade unionist" . . . "Press Syndicate" . "labor confederation" . . . "trade union" . "labour wing" . . "Trade unions in Argentina" . "Trade unions in Argentina" . "trade unions in Argentina" . "labor unions" . "trade-unionist" . . "trade unions" .