TY  - BOOK
AU  - Rai, Amar Nath  .
TI  - Distance education : open learing vs. virutal university concepts / 
SN  - 81-7273-036-5
U1  - T4 
PY  - 2000///
CY  - Delhi : 
PB  - Authorspress , 
KW  - Distance education
ER  -