00542nam a2200181Ia 4500 0 0 ddc 0 0 RESEARCH MES MES RESEARCH 2019-02-20 175.00 0 001.424 GUP/O 25973 2019-02-20 00:00:00 1 2019-02-20 BK GL20R1 0 0 ddc 0 0 RESEARCH MES MES RESEARCH 2019-02-20 175.00 0 001.424 GUP/O 27473 2019-02-20 00:00:00 2 2019-02-20 BK GL20R1 6061 6061 OSt 20200810125948.0 190216s9999||||xx |||||||||||||| ||und|| 9788121902816 oclc 001.424 GUP/O Gupta, P. K., 133 Ph. D., D. Litt. Operations Research / P K Gupta ; D S Hira S Chand And Company, 2001. New Delhi: 1055p Operation Research BK ddc 001.424 GUP/O 001.424 GUP/O