000 00384nam a2200145Ia 4500
003 PTTI
005 20251207204916.0
008 251207s9999 xx 000 0 und d
020 _c1995
040 _aPTTI
245 0 _aENCYCLOPEDIA OF EDUCATIONAL TECHNOLOGY
_cY. K. SINGH T. R. SHARMA BRIJESH UPADHYAY
260 _bAPH PUB
_aNEW DELHI
_c2014
300 _a340
_bP. B. K.
942 _cDELED
999 _c626
_d626