LEADER 00000nam 2200217 a 4500 001 0922866 007 t 008 001303 1 1991 000 eng 020 0887367283 040 CURLBL 050 4 T 14.5 V8 245 00 Virtual reality :|btheory, practice, and promise /|cedited by Sandra K. Helsel and Judith Paris Roth. 260 Westport :|bMeckler,|c1991. 300 143p. 700 1 Helsel, Sandra K. 700 1 Roth, Judith Paris. 946 6XX absent
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