Não informado. (1962). Concrete paving. Portland Cement Association.
Chicagoスタイル(17版)引用形式Não informado. Concrete Paving. Chicago, Ill: Portland Cement Association, 1962.
MLA(8版)引用形式Não informado. Concrete Paving. Portland Cement Association, 1962.
警告: この引用は必ずしも正確ではありません.