000			00323nam a2200133Ia 4500
008			220201s1979 xx 000 0 eng d
082			_a331.714 _bBReference A
100			_aBReference ATON (N)
245		0	_aManagerial economics in practice
260			_c1979
300			_a282
700			_aLIVINGSTONE (IM)
942			_2ddc
999			_c5207 _d5207