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020 |
_aKBCS _c40 |
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040 | _aMAIN | ||
082 | _a921 | ||
100 |
_aLESGOLD,ALAN (ED), MANDL,HEINZ (ED) _936335 |
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245 | 0 | _aLEARNING ISSUES FOR INTELLIGENT TUTORING SYSTEMS (COGNITIVE SCIENCE) | |
250 | _a1 | ||
260 |
_bSV _c1988 _aNEW YORK |
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300 | _b307 | ||
500 | _aBR-752 | ||
942 | _cBK | ||
999 |
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