000 00304nam a22001337a 4500
020 _a72180544
050 _aMED QD121
_bJ4
100 _aJEFFERY,P.G
245 _aGAS ANALYSIS BYGAS CHROMATOGRAPHY
250 _a2nd ed
260 _aOXFORD
_bPERGAMON PRESS
_c1972
300 _aX,196P
_bILL
942 _cBK
999 _c15923
_d15923