Democratic trade union rights: a powerful weapon of the working class. Documents of the second meeting of the International Trade Union and Legal Commission for the Defence and Extension of Trade Union Rights and the Protection of the Victims of Anti-Trade Union Repression. Prague, July 17-19, 1963.
World Federation of Trade Unions. International Trade Union and Legal Commission for the Defence and Extension of Trade Union Rights and the Protection of the Victims of Anti-Trade Union Repression.
Prague, 
[1963]