000 00303nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aRai, Amar Nath
245 0 _aDistance Education Open Learning Vs. Virtual University Concepts
260 _aDelhi
_bAuthorspress
_c2000
300 _a274p.
942 _cBK
999 _c13675
_d13675