000 00322nam a2200145Ia 4500
100 _aNanda, V.K.
020 _a81-261-0023-0
365 _b750
942 _cBK
654 _a
245 _aTypology of distance teaching systems
260 _aNew Delhi
_bAnmol Publications
_c1998
082 _a374
300 _bHb
_a8308
999 _c414670
_d414670
041 _aeng