000			00297nam a2200121Ia 4500
008			151128s9999 xx 000 0 und d
020			_a8172400551
041			_aENG
245			_aComputer communication systems
260			_c1994 _aDelhi _bGlobal Business Press
300			_a106p.
942			_cBK _01
999			_c28754 _d28754