000 00560nam a22002177a 4500
999 _c31453
_d31453
003 OSt
005 20191023222610.0
008 190114b ||||| |||| 00| 0 eng d
020 _a9231013777
040 _aOSt
_beng
_cOSt
_dOSt
082 _a507 / U3n
110 _aUnesco
_937021
245 _a New trends in integrated science teaching /
260 _aParis :
_bUnesco,
_c1990.
300 _aVols. ;
_c29 cm.
440 _aThe teaching of basic sciences
_966174
505 _aV. 6-- ;
508 _a72
650 _aTeaching.
_966175
942 _2ddc
_cBK