00285nam a2200109 a 450000500170000000800410001704100080005810000170006624500390008326400420012230000110016420260717072129.0260701s1979    ii            000 0 eng d  aeng1 aGupta, R. K.10aLinear programming /cGupta, R. K. 1aMeerut :bKrishna Publication,c1979.  a280 p.