000 00253nam a22001097a 4500
100 _aJayasinghe,K.B.T
245 _aStudy of gas chromatography and its applications
260 _aColombo
_bIchemc
_c2013
300 _a46
650 _agas
_a2013
942 _cBK
999 _c3243
_d3243