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020 _a92-3-102779-4
040 _aOSt
_bEnglish
_cOSt
082 _a507 / U31
245 _aInnovations in science and technology education /
_cedited by David Layton.
260 _aParis :
_bUNESCO,
_cc 1992..
300 _aVols. ;
_c24 cm.
505 _aV. 4-- ;
508 _a311
650 _aTechnology education.
_927114
700 _aLayton, David.
_eeditor
_9243155
942 _2ddc
_cBK