00438nam a2200157Ia 4500008004100000020001500041082001600056100002100072245006300093250000600156260003500162300000800197650003400205650001800239653002300257170901s1970    xx            000 0 und d  a0124527566  a545.7bL67G  aLittlewood, A.B. 0aGas ChromatographybPrinciples,Techniques and Applications  a2  aNew YorkbAcademic Pressc1970  a546  aChemistry and allied sciences  aPure Sciences  aGas chromatography