El Eco Obrero ('The Workers Echo') was a workers publication published from Sucre, Bolivia. The publication was founded in 1887, and was the organ of the Workers Mutual Aid Society of the Capital.Lora, Guillermo. Historia del movimiento obrero boliviano. La Paz, Cochabamba: Editorial "Los Amigos del Libro, 1967. pp. 410, 455 José Santos Sea was the director of El Eco Obrero.Melgar Bao, Ricardo. El movimiento obrero latinoamericano: historia de una clase subalterna. México: Alianza Editorial Mexicana, 1989. p. 431
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