ANÓNIMO. Synthetic cement produced by newly-petented process. Materiales de Construcción, [S. l.], v. 1, n. 026, p. 15–15, 1951. DOI: 10.3989/mc.1951.v01.i026.2825. Disponível em: https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2825. Acesso em: 6 may. 2024.