APA (7th ed.) Citation

CP (Conference) Lisbon, Portugal), SpringerLink (Online service), & Gent, I. (2009). Principles and practice of constraint programming: 15th international conference ; proceedings. CP 2009, Lisbon, Portugal, September 20 - 24, 2009. Springer. https://doi.org/10.1007/978-3-642-04244-7

Chicago Style (17th ed.) Citation

CP (Conference) Lisbon, Portugal), SpringerLink (Online service), and Ian Gent. Principles and Practice of Constraint Programming: 15th International Conference ; Proceedings. CP 2009, Lisbon, Portugal, September 20 - 24, 2009. Berlin ; Heidelberg ; New York, NY: Springer, 2009. https://doi.org/10.1007/978-3-642-04244-7.

MLA (9th ed.) Citation

CP (Conference) Lisbon, Portugal), et al. Principles and Practice of Constraint Programming: 15th International Conference ; Proceedings. CP 2009, Lisbon, Portugal, September 20 - 24, 2009. Springer, 2009. https://doi.org/10.1007/978-3-642-04244-7.