000 00272nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aAggarwal, D.D.
245 0 _aMethods Of Distance Education
260 _aNew Delhi
_bSarup & Sons
_c2007
300 _a266p.
942 _cBK
999 _c15135
_d15135