00892nam a2200265 i 450099100085584970753620020507174621.0981214s1969 ||| | eng b10766844-39ule_instLE01303364ExLDip.to Matematicaeng003AMS 90-01AMS 90BGhosal, Amitava535269Elements of operational research /A. GhosalDelhi :Hindustan Publ. Corp.,1969xi, 207 p. ;22 cmOperations research.b1076684415-07-1928-06-02991000855849707536LE013 90B GHO11 (1969)12013000106076le013-E0.00-l- 00000.i1086306028-06-02Elements of operational research923391UNISALENTOle01301-01-98ma -engxx 01