000 00282nam a2200121Ia 4500
008 230321s9999 xx 000 0 und d
082 _bNIG
100 _aNigam, B.K
245 0 _aManagement & Evalution of Distance Education
260 _bKanishka
_c1996
300 _a373
942 _cBK
999 _c873
_d873