00338nam a2200121Ia 4500008004100000020001800041082001900059100002200078245004900100250000800149260003300157300002600190240917b        |||||||| |||| 00| 0 eng d  a9781118443330  a519.7bW723.MB  aWilliams, H. Paul  aModel building in mathematical programming /  a5th  aNew York:bJohn Wiley,c2013  axx, 411p. Bibl. Index