APA
                    Rick Riolo T. S. B. W., . (2007). Genetic Programming Theory and Practice IV. Germany: Springer.
                
                    Chicago
                    Rick Riolo Terence Soule Bill Worzel, . 2007. Genetic Programming Theory and Practice IV. Germany: Springer.
                
                    Harvard
                    Rick Riolo T. S. B. W., . (2007). Genetic Programming Theory and Practice IV. Germany: Springer.
                
                    MLA
                    Rick Riolo Terence Soule Bill Worzel, . Genetic Programming Theory and Practice IV. Germany: Springer. 2007.