000 00292nam a2200121Ia 4500
003 LDD
040 _cLDD
041 _aen
245 0 _aJournal of Educational Psychology
260 _aAmerican Psychological Association
_bWashington
_c1 Jan-31 Dec,1989
362 _a47-47
_b0
942 _2ddc
_cJ
999 _c179887
_d179887