ANÓNIMO. Concrete guides used to position equipment at belgian cement mill. Materiales de Construcción, [S. l.], n. 013, p. 38–38, 1950. DOI: 10.3989/mc.1950.i013.3054. Disponível em: https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/3054. Acesso em: 7 may. 2024.