000 00309nam a2200133 4500
082 _a543 PEC
100 _aPecsok,Robert.l
245 _amodern Method of Chemical Analysis
260 _aNew York
_bWiely
_c1968
300 _a480p
650 _achemistry
_achemical analysys
700 _aShields.L.D
942 _cBK
999 _c308
_d308