1. Confederation of the Latin American Christian Trade Unionists (CLASC). Geographic Origin: United States Date: 1963
2. Telefonica's Exploitation of Colombian Workers, the US-Colombia FTA, and the Labor Action Plan. A Case Study by the Communication Workers of America. Geographic Origin: United States Publisher: Communication Workers of America (CWA) Date: 2014
3. Trade Unionism as an Instrument of the Latin American Revolution. Geographic Origin: United States Publisher: Latin American Federation of Christian Trade Unions (CLASC) Date: 1970