000 00271nam a2200109Ia 4500
008 170821s017 xx 000 0 und d
100 _aDr Ass. 1 Indian
245 0 _aHand Book & Distance Eductaion
260 _bN. Delhi , Ass.
_c1998
300 _a149
942 _2ddc
_cBK
999 _c492567
_d492567