00358nam a2200133 a 450000500170000000800410001704100080005808200110006610000170007724500690009426400390016330000110020270000110021320260717091102.0260717s1983    ii            000 0 eng d  aeng04a651.751 aDoctor, Aspi10aPrinciples of practice of business communication /cDoctor, Aspi 1aBombay :bSheth Publishers,c1983.  a555 p.1 aDoctor