Helsel, S. K. (1993). VR becomes a business: Proceedings of Virtual Reality '92 : the 3rd annual conference and exhibition, San Jose, September 1992. Meckler.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Helsel, Sandra K. VR Becomes a Business: Proceedings of Virtual Reality '92 : The 3rd Annual Conference and Exhibition, San Jose, September 1992. Westport, CT: Meckler, 1993.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Helsel, Sandra K. VR Becomes a Business: Proceedings of Virtual Reality '92 : The 3rd Annual Conference and Exhibition, San Jose, September 1992. Meckler, 1993.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.