000 00586nam a2200241Ia 4500
001 34323
003 101050
005 20251109064833.0
008 ||||||n9999 ||| || ||
041 _aeng
082 _220
_a600
100 _aWittich, Walter
_949251
245 0 _aInstructional technology
_bits nature and use
250 _a5ed
260 _aEstados Unidos :
_bHarper & Row publishers,
_c1973.
300 _a737p
490 _aExploration series in education
562 _e1
650 0 _aTecnologĂ­a
_92367
942 _cBKM
942 _cBKM
999 _c34323
_d34323
526 _a4969