000 00409nam a2200169Ia 4500
008 200204s9999 xx 000 0 und d
020 _a8123719493
082 _a005.43 Bha
100 _a"Bhattacharya, Tapan"
245 4 _aThe Illusive world of Virtual reality
260 _aNew Delhi
260 _bNational Book Trust
260 _c1997
300 _a158
650 _aVirtual services
942 _cBK
999 _c73524
_d73524