00329nam a2200133Ia 4500008004100000020001500041041001200056082001100068100000600079245006200085260003300147300000700180650000800187221030s9999    xx            000 0 und d  a8173192472  aEnglish  a105.23  a- 0aBasic Training ISDN Office Communication Techniquescby -  bNarosa Pub.aNew Delhic1999  a86  aECE