Não informado. (1977). World cement technology. Cement and Concrete Association.
Chicagoスタイル(17版)引用形式Não informado. World Cement Technology. London: Cement and Concrete Association, 1977.
MLA(8版)引用形式Não informado. World Cement Technology. Cement and Concrete Association, 1977.
警告: この引用は必ずしも正確ではありません.