000 00304 a2200121 4500
080 _a65.012.1
_bR 924 C
245 1 _aConcepts of operational research
_cby P. Rivett
260 _aLondon
_bC.A. Watts
_c1968
650 _aOperations Research
100 1 _aRivett, P.
_d
300 _a206 p.
901 _a125155
999 _c87991
_d87991