National Academy of Engineering. Steel Panel, National Research Council (U.S.). Commission on Engineering and Technical Systems, Old, B. S., & Clark, J. P. (1985). The Competitive status of the U.S. steel industry: A study of the influences of technology in determining international industrial competitive advantage. National Academy Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Academy of Engineering. Steel Panel, National Research Council (U.S.). Commission on Engineering and Technical Systems, Bruce S. Old, و Joel P. Clark. The Competitive Status of the U.S. Steel Industry: A Study of the Influences of Technology in Determining International Industrial Competitive Advantage. Washington, D.C.: National Academy Press, 1985.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)National Academy of Engineering. Steel Panel, et al. The Competitive Status of the U.S. Steel Industry: A Study of the Influences of Technology in Determining International Industrial Competitive Advantage. National Academy Press, 1985.