UTLEY, H. . Lehigh’s metaline falls output doubled by modornization program. Materiales de Construcción, [S. l.], n. 017, p. 12–14, 1950. DOI: 10.3989/mc.1950.i017.3166. Disponível em: https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/3166. Acesso em: 3 may. 2024.