000 00500nam a2200169Ia 4500
008 190327s9999||||xx |||||||||||||| ||und||
040 _aNITIL
_cNITIL
082 _221st
_a371
_bS192I
100 _aSampath, K
245 0 _aIntroduction to educational technology
_cK Sampath
260 _aNew Delhi
_bSterling
_c1981
300 _aviii, 292p.
650 _aEducational technology; Teaching-Aids and devices; Teaching machines
700 _aPannireselvam, A
700 _aSanthanam, S
942 _cBKS
999 _c62574
_d62574