एपीए उद्धरण

Levinson,Paul. (1997). The soft edge: A natural history and future of the information revolution. Routledge.

शिकागो स्टाइल उद्धरण

Levinson,Paul. The Soft Edge: A Natural History and Future of the Information Revolution. London: Routledge, 1997.

एमएलए उद्धरण

Levinson,Paul. The Soft Edge: A Natural History and Future of the Information Revolution. Routledge, 1997.