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Are you Ruber Carvalho, author of the books below?
La Mitad de la Sangre by Ruber Carvalho Manual de historia de Bolivia, una visión desde la llanura by Ruber Carvalho Ya no me da dolor... solo cansancio by Ruber Carvalho La mitad de la sangre by Ruber Carvalho Canto, cantum, cantorum by Ruber Carvalho


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