TY - BOOK AU - Williams, H. P. TI - Model building in mathematical programming SN - 0471925802 U1 - 519.7 21 PY - 1990/// CY - Chichester [England], New York PB - Wiley KW - Programming (Mathematics) KW - Mathematical models N1 - "A Wiley-Interscience publication."; Includes bibliographical references (p. 338-345) and indexes ER -