APA引文
ebrary, Inc. (1990). Competitiveness of the U.S. minerals and metals industry. National Academy Press.
Chicago Style (17th ed.) Citation
ebrary, Inc. Competitiveness of the U.S. Minerals and Metals Industry. Washington, D.C. ; [Great Britain]: National Academy Press, 1990.
MLA引文
ebrary, Inc. Competitiveness of the U.S. Minerals and Metals Industry. National Academy Press, 1990.
警告：這些引文格式不一定是100％准確.