000 00554nam a2200181Ia 4500
999 _c17051
_d17051
005 20191107164041.0
008 190710s9999 xx 000 0 und d
020 _a81-700-042-4
041 _aeng
082 _a371.331 B4
100 _aBhatnagar, S
245 0 _aEducation and communication technology
260 _aNew Delhi
_b: Ess Ess Publications,
_c1988
300 _axxv, 298p.
650 _a| Education - Communication technology
_a| Educational technologies
_a| Education - Instruction media
700 _aAnand, Satyapal
942 _cBK