Dyfyniad APA

Howard Rheingold. (1991). Virtual reality. New York: Summit Books.

Dyfyniad Arddull Chicago

Howard Rheingold. Virtual Reality. New York: Summit Books, 1991.

Dyfyniad MLA

Howard Rheingold. Virtual Reality. New York: Summit Books, 1991.

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