00438nam a2200121Ia 4500 260312b |||||||| |||| 00| 0 eng d 658.4034 In61.WO International Computers and Tabulators Limited, London 18197 What is O.R. ; an introduction to operational research techniques / London: The Auth., 1964 23p. ddc BK 0 0 0 658_403400000000000_IN61_WO 0 GR 11921 ISI ISI 1998-09-09 0 658.4034 In61.WO G13 2019-02-14 00:00:00 BK 9716 9716