Helsel, S. K. (1993). VR becomes a business: Proceedings of Virtual Reality '92 : the 3rd annual conference and exhibition, San Jose, September 1992. Meckler.
芝加哥风格引文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.
MLA引文Helsel, Sandra K. VR Becomes a Business: Proceedings of Virtual Reality '92 : The 3rd Annual Conference and Exhibition, San Jose, September 1992. Meckler, 1993.
警告：这些引文格式不一定是100％准确.