000			00311nam a22001097a 4500
082			_a570 _bNCE.C
245			_aChemistry : _btextbook for secondary schools /
260			_aNew Delhi : _bNational council of educational research and training, _c1975.
300			_a168p. :
650			_aEducation
942			_cBK _2ddc
999			_c724644 _d724644