Marrin,, C. (1998). Teach yourself VRML 2 in 21 days. Techmedia.
Chicago Edition CitationMarrin,, Chris. Teach Yourself VRML 2 in 21 Days. New Delhi: Techmedia, 1998.
MLA引文Marrin,, Chris. Teach Yourself VRML 2 in 21 Days. Techmedia, 1998.
警告:這些引文格式不一定是100%准確.