000 00291nam a2200121Ia 4500
008 220119s9999||||xx |||||||||||||| ||und||
040 _cIAB
082 _a370.78 STU.
100 _a-
245 0 _aStudies In Educational Evaluation:Vol 15.
260 _bPergamon Press.
_c1989
942 _cBOOK
999 _c35848
_d35848