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.
ציטוט MLAMarrin,, Chris. Teach Yourself VRML 2 in 21 Days. Techmedia, 1998.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.