Não informado. (1970). Cement technology. Cement and Concrete Association.
Chicagoスタイル(17版)引用形式Não informado. Cement Technology. London: Cement and Concrete Association, 1970.
MLA(8版)引用形式Não informado. Cement Technology. Cement and Concrete Association, 1970.
警告: この引用は必ずしも正確ではありません.