Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.