00652nam a2200205 4500 1/11231 970924s1979 enk 000 0 eng 0712115145 11585 DLC GR-PeUP 658.403'4 HA Harper, W.M. Operational research/ W. M. Harper. Plymouth: Macdonald and Evans, 1979. 301 σ. ; 18 εκ. The M & E handbook series ; Περιέχει ευρετήριο. Operations research. The M & E handbook series. INST UNIPILB MAIN 20040709 658.403'4 HA 00112385 00112385 LOAN 0 1