000 003360000a22001330004500
008 151204t1978 xxu||||| |||| 00| 0 eng d
020 _a0-471-99526-6
041 _aeng
080 _a519.85
_bW5
942 _cBK
100 _aWilliams, H.P.
245 _aModel building in mathematical programming
260 _aChichester
_bWiley
_c1978
999 _c139303
_d139303