TY  - BOOK
AU  - Bhattacharya, Tapan  .
TI  - Illusive world of virtual reality / 
SN  - 81-237-1949-3
U1  - A 
PY  - 1997///
CY  - New Delhi : 
PB  - National Book Trust,  India , 
KW  - Natural science
ER  -