International Symposium, Recycling of Metals and Engineered Materials Pittsburgh, Pa., Minerals, Metals and Materials Society. Extraction and Processing Division. Recycling Committee, Minerals, Metals and Materials Society. Light Metals Division, Stewart, D. L., Daley, J. C., & Stephens, R. L. (2000). Fourth International Symposium on Recycling of Metals and Engineered Materials: Proceedings of a symposium organized by the Recycling Committee of the Extraction & Processing Division and the Light Metals Division of TMS : [Pittsburgh, Pennsylvania], October 22-25, 2000. Minerals, Metals & Materials Society.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)International Symposium, Recycling of Metals and Engineered Materials Pittsburgh, Pa., Metals and Materials Society. Extraction and Processing Division. Recycling Committee Minerals, Metals and Materials Society. Light Metals Division Minerals, Donald L. Stewart, James C. Daley, و R. L. Stephens. Fourth International Symposium on Recycling of Metals and Engineered Materials: Proceedings of a Symposium Organized by the Recycling Committee of the Extraction & Processing Division and the Light Metals Division of TMS : [Pittsburgh, Pennsylvania], October 22-25, 2000. Warrendale, Pennsylvania: Minerals, Metals & Materials Society, 2000.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)International Symposium, Recycling of Metals and Engineered Materials Pittsburgh, Pa., et al. Fourth International Symposium on Recycling of Metals and Engineered Materials: Proceedings of a Symposium Organized by the Recycling Committee of the Extraction & Processing Division and the Light Metals Division of TMS : [Pittsburgh, Pennsylvania], October 22-25, 2000. Minerals, Metals & Materials Society, 2000.