. . "United States of America; social movements; trade union movement; freedom of association." . . "Shall Trade Unions by regulated by law?"@en . . "Shall trade unions be regulated by law?" . . . . . . . . . . . . "Shall trade unions be regulated by law"@en . "Verenigde Staten; sociale bewegingen; vakbeweging; bijzondere onderwerpen; vrijheid van vakverenigingsoptreden." . .