000			00291nam a2200133Ia 4500
008			250407s1900 xx 000 0 und d
041			_aeng
082			_a510
100			_aExperiend Teachers
245			_aMatthematics VII
260			_aN.C.E.R
300			_a414P
650			_aMathematics
999			_c354980 _d354980