000			00278nam a2200109Ia 4500
005			20260205040132.0
008			260111s9999||||xx |||||||||||||| ||und||
082			_a542 Un2C
245		0	_aConstruction of laboratory appratus for schools
260			_aParis _bUnesco _c1955
942			_cBK
999			_c361 _d361