ebrary, Inc, Symposium on the Future of Aerospace, & Flax, A. H. (1993). The Future of aerospace: Proceedings of a symposium held in honor of Alexander H. Flax, Home Secretary, National Academy of Engineering. National Academy Press.
芝加哥风格引文ebrary, Inc, Symposium on the Future of Aerospace, 与 Alexander H. Flax. The Future of Aerospace: Proceedings of a Symposium Held in Honor of Alexander H. Flax, Home Secretary, National Academy of Engineering. Washington, D.C.: National Academy Press, 1993.
MLA引文ebrary, Inc, et al. The Future of Aerospace: Proceedings of a Symposium Held in Honor of Alexander H. Flax, Home Secretary, National Academy of Engineering. National Academy Press, 1993.
警告：这些引文格式不一定是100％准确.