United States International Trade Commission. (1990). Gray portland cement and cement clinker from Japan: Determinations of the Commission in investigation No.731-TA-461 (Premilinary) under the Tariff Act of 1930, together with the information obtained in the investigation. Washington, D.C: United States International Trade Commission.
استشهاد بنمط شيكاغوUnited States International Trade Commission. Gray Portland Cement and Cement Clinker From Japan: Determinations of the Commission in Investigation No.731-TA-461 (Premilinary) Under the Tariff Act of 1930, Together With the Information Obtained in the Investigation. Washington, D.C: United States International Trade Commission, 1990.
MLA استشهادUnited States International Trade Commission. Gray Portland Cement and Cement Clinker From Japan: Determinations of the Commission in Investigation No.731-TA-461 (Premilinary) Under the Tariff Act of 1930, Together With the Information Obtained in the Investigation. Washington, D.C: United States International Trade Commission, 1990.