Dyfyniad APA

(1992). Virtual worlds: Real challenges : papers from SRI's 1991 Conference on Virtual Reality / edited by Teresa Middleton.

Dyfyniad Arddull Chicago

Virtual Worlds: Real Challenges : Papers from SRI's 1991 Conference on Virtual Reality / Edited by Teresa Middleton. 1992.

Dyfyniad MLA

Virtual Worlds: Real Challenges : Papers from SRI's 1991 Conference on Virtual Reality / Edited by Teresa Middleton. 1992.

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