Headline: Presidente de los sindicatosLink: http://www.nacion.com/opinion/columnistas/Presidente-sindicatos_0_1559644022.htm…Publication Date: Monday, May 9, 2016Primary Source: La Nacion (Costa Rica)Type: op-edFormat: Newspaper (Print)Nature of Mention: authoredScholar: Hidalgo, Juan CarlosResearch Area: Government and PoliticsSubjects: the Costa Rican unions