Levinson, P. (1997). The soft edge: A natural history and future of the information revolution (1. publ.). Routledge.
Chicago-Zitierstil (17. Ausg.)Levinson, Paul. The Soft Edge: A Natural History and Future of the Information Revolution. 1. publ. London ; New York: Routledge, 1997.
MLA-Zitierstil (8. Ausg.)Levinson, Paul. The Soft Edge: A Natural History and Future of the Information Revolution. 1. publ. Routledge, 1997.
警告:這些引文格式不一定是100%准確.