000 00663nam a2200241Ia 4500
003 OSt
005 20220918194517.0
006 a|||||r|||| 00| 0
007 ta
008 220917b |||||||| |||| 00| 0 eng d
024 _a79,867
037 _cTextual
040 _aARTS
_cARTS
_beng
041 _2eng
_aeng
082 _aS:43, L4-;1
100 _aDavis Robert H
_985346
245 0 _cDavis Robert H
_aLearning system design
_b an approach to the improvement of instruction
260 _aNew York
_bMcGraw-Hill
_c1974
300 _aix,342p.
_ccm.
650 _aPSYCHOLOGY
942 _hS:43, L4-;1
_cTEXL
_2CC
999 _c203593
_d203593