000			00327nam a2200145Ia 4500
008			131111s9999 xx 000 0 und d
100			_aUnesco
245			_aNew trends in biology teaching: vol-5
260			_aPariss
260			_bUnesco
260			_c1985
300			_a222 p.Vol.V
650			_aEducation
763			_a7143
999			_c37884 _d37884