Cita APA (7a ed.)

Leuschel, M. (2007). PPDP '07: Proceedings of the 9th International ACM SIGPLAN Conference on Principles and Practice of Declarative Programming : Wroclaw, Poland, July 14-16, 2007. Association for Computing Machinery.

Cita Chicago Style (17a ed.)

Leuschel, Michael. PPDP '07: Proceedings of the 9th International ACM SIGPLAN Conference on Principles and Practice of Declarative Programming : Wroclaw, Poland, July 14-16, 2007. [Place of publication not identified]: Association for Computing Machinery, 2007.

Cita MLA (9a ed.)

Leuschel, Michael. PPDP '07: Proceedings of the 9th International ACM SIGPLAN Conference on Principles and Practice of Declarative Programming : Wroclaw, Poland, July 14-16, 2007. Association for Computing Machinery, 2007.