APA
                    Matteo Fischetti D. P. W., . (2007). Integer Programming and Combinatorial Optimization. Germany: Springer.
                
                    Chicago
                    Matteo Fischetti David P Williamson, . 2007. Integer Programming and Combinatorial Optimization. Germany: Springer.
                
                    Harvard
                    Matteo Fischetti D. P. W., . (2007). Integer Programming and Combinatorial Optimization. Germany: Springer.
                
                    MLA
                    Matteo Fischetti David P Williamson, . Integer Programming and Combinatorial Optimization. Germany: Springer. 2007.