000 00483nam a2200169Ia 4500
008 131101s9999 xx 000 0 und d
040 _aCIFRI LIBRARY
041 _aEnglish
082 _a371.102
_bI62
245 _aInventores of apparatus and materials for teaching science
_cUNESCO, Paris
260 _aParis
_bUNESCO
_c1950
300 _aV.2; tables
500 _aIncludes bibliography & index
650 _aTeaching - Aids and devices
700 _aParis. UNESCO
942 _cBK
999 _c2846
_d2846