000			00367cam a22001337a 4500
008			180718b1972 xxu||||| |||| 00| 0 eng d
082			_aI552 B863/72
100			_aBuffa, Elwood S.
245			_aOperations management: problems and models _cbu Elwood S. Buffa
250			_a3rd
260			_aNew York _bWiley _c1972
300			_a762p.
650			_aOperationas Research
999			_c342921 _d342921