00700nam0-22002651i-450-990001150470403321000115047FED01000115047(Aleph)000115047FED01000115047--------d--------km-y0itay50------baeng<<A >>guide to operational researchW. E. DuckworthLondonMethuenc1962Ricerca operativa003Duckworth,W.E.55000ITUNINARICAUNIMARCBK9900011504704033219-I-334746MA1MA190BXXGuide to operational research334233UNINA