Não informado. (1919). Cement, Mill and Quarry. National Trade Journals.
Chicagoスタイル(17版)引用形式Não informado. Cement, Mill and Quarry. New York: National Trade Journals, 1919.
MLA(8版)引用形式Não informado. Cement, Mill and Quarry. National Trade Journals, 1919.
警告: この引用は必ずしも正確ではありません.