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Are you Manuel Calvo Hernando, author of the books below?
Introducción a la tecnología. by Manuel Calvo Hernando Viaje al futuro by Manuel Calvo Hernando La Ciencia En El Tercer Milenio by Manuel Calvo Hernando Ciencia y periodismo by Manuel Calvo Hernando Las puertas del futuro by Manuel Calvo Hernando Reportaje a Filipinas by Manuel. Calvo Hernando Viaje al Futuro. by Manuel Calvo Hernando Viaje al año 2000 by Manuel Calvo Hernando Veraneo en orden de combate by Manuel Calvo Hernando Viaje al año 2000 by Manuel Calvo Hernando


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