00307nam a2200121 a 450000500170000002000150001708200210003210000220005324500250007525000160010026000440011630000250016020251203091756.0  a0706985540  a651.374,bD, Bag  aBagrial, Ashok K.  aSecretarial practice  a3rd Rev.Ed.  aNew DelhibVikas Publishing Housec1990  axxxiv, 612p.c23 cm.