UTLEY, H. . Columbia gypsum produots uses kettle of unusual design. Materiales de Construcción, [S. l.], v. 2, n. 032, p. 43–43, 1952. DOI: 10.3989/mc.1952.v02.i032.2744. Disponível em: https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2744. Acesso em: 5 may. 2024.