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Publicado en: The Journal of the Iron and Stell Institute / edited by Bennett H. Brough , London : Spon, 1897, No 2, v. 50 (1986), p. 5-35
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3Bilbao : [s.n.] , 1904Materia: '; “...Industria siderurgikoa Espainia 1904...”
Libro Microfilm