Kalawsky, Roy S. <br/><br/>
The science of virtual reality and virtual environments :  a technical, scientific and engineering reference on virtual environments / 
Roy S. Kalawsky. 
 - Wokingham, England :  Addison-Wesley,  c1993. 
 - xx, 405 p. : ill. 
<br/><br/><label>ISBN: </label>0201631717 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Virtual reality.<br/>Computer simulation.<br/>Human-computer interaction.