Williams, H. P. (1990). Model building in mathematical programing (3nd. ed.). John Wiley.
Cita Chicago Style (17a ed.)Williams, H. P. Model Building in Mathematical Programing. 3nd. ed. Chichester: John Wiley, 1990.
Cita MLA (8a ed.)Williams, H. P. Model Building in Mathematical Programing. 3nd. ed. John Wiley, 1990.
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