Dyfyniad APA
Williams, H. P. (2013). Model building in mathematical programming (5th ed.). Wiley.
Dyfyniad Arddull Chicago
Williams, H. P. Model Building in Mathematical Programming. 5th ed. Hoboken, N.J.: Wiley, 2013.
Dyfyniad MLA
Williams, H. P. Model Building in Mathematical Programming. 5th ed. Wiley, 2013.
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