APA (7th ed.) Citation

Porto, A. (2009). PPDP '09: Proceedings of the 11th International ACM SIGPLAN Symposium on Principles and Practice of Declarative Programming : September 7-9, 2009 Coimbra, Portugal. Association for Computing Machinery.

Chicago Style (17th ed.) Citation

Porto, António. PPDP '09: Proceedings of the 11th International ACM SIGPLAN Symposium on Principles and Practice of Declarative Programming : September 7-9, 2009 Coimbra, Portugal. [Place of publication not identified]: Association for Computing Machinery, 2009.

MLA (9th ed.) Citation

Porto, António. PPDP '09: Proceedings of the 11th International ACM SIGPLAN Symposium on Principles and Practice of Declarative Programming : September 7-9, 2009 Coimbra, Portugal. Association for Computing Machinery, 2009.