1. 1º de Maio: Dia Internacional das Trabalhadoras e dos Trabalhadores. 2019. Desemprego de novo? Geographic Origin: Brazil Publisher: Pastoral Operaria Nacional Date: 2019
2. Simposio Nacional sobre Sindicalismo Campesino. Punta de Tralca. 8 al 12 de octubre 1982. Geographic Origin: Chile Publisher: Departamento Campesino - Vicaria de la Solidaridad - Arzobispado de Santiago Date: 1982
3. Confederation of the Latin American Christian Trade Unionists (CLASC). Geographic Origin: United States Date: 1963
4. Chile External. Extract of a Letter from Four Major Peasant Labour Organizations to the Chilean Bishops. Geographic Origin: Chile Publisher: Amnesty International Date: 1997