000			002940000a22001210004500
060			_a100
082			_a503 MCG.09
245			_aMc Graw - hill encyclopaedia of science & technology V.9 nai - pep
260			_aNew York, Mc Graw-Hill Book Co
260			_c1990
300			_a782
942			_cBK
999			_c358459 _d358459