00425     2200169   4500001002100000008003900021035002000060245002500080100001800105260003000123300002400153020001500177084001600192082001000208650002300218990001400241INLIS000000000007164                                   N    a0010-0317007162  aOperational research  aHarper, W. M.  bMacDonald and Evansc1979  axv, 301 hlm.c18 cm  a0712115145  a511.8 Har o  a511.8  aRESEARCH OPERATION  a300090881