00285nam a2200121Ia 450000500170000000800410001704100080005808200160006610000150008224500190009726000380011630000090015420260720174545.0260720s2004    xx            000 0 und d  aeng  a370.71 SINM  aSingh, U K  aMicro teaching  aNew DelhibA P H Publishingc2004  a253p