A.S.T.M. Tentative specifications for natural cement. Materiales de Construcción, [S. l.], v. 3, n. 045, p. 32–38, 1953. DOI: 10.3989/mc.1953.v03.i045.2687. Disponível em: https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2687. Acesso em: 21 may. 2024.