00255nam a2200097Ia 4500008004100000041000800041100001300049245004600062260003000108999001900138230508s2011    xx            000 0 und d  aeng  aWEBB J W  aPROGRAMABLE LOGIC CONTROLLER PRIN. APPLI.  bPHI LEARNIG PVT LTDc2011  c733408d733408