Dyfyniad APA

Martin, C., & Campbell, B. (1997). Teach yourself VRML2 in 21 days. Techmedia.

Dyfyniad Arddull Chicago

Martin, Chris, and Bruce Campbell. Teach Yourself VRML2 in 21 Days. New Delhi: Techmedia, 1997.

Dyfyniad MLA

Martin, Chris, and Bruce Campbell. Teach Yourself VRML2 in 21 Days. Techmedia, 1997.

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