00313nam a2200133 a 450000500170000002000150001708200220003210000060005411000160006024500390007626000240011530000210013971000190016020251203091735.0  a8170233453  a658.4062,bD, gup  d_  aGupta, S.P.  aManagement of technological change  aDelhibAlliedc1992  axxiv, 174p, 22cm  aVenkataraman K