APA

Johnson D., Association for Computing Machinery & ACM Special Interest Group on Algorithms and Computation Theory. (2007). Proceedings of the thirty-ninth annual ACM symposium on Theory of computing. New York, NY: ACM.

Chicago

Johnson David, Association for Computing Machinery and ACM Special Interest Group on Algorithms and Computation Theory. 2007. Proceedings of the thirty-ninth annual ACM symposium on Theory of computing. New York, NY: ACM.

Harvard

Johnson D., Association for Computing Machinery and ACM Special Interest Group on Algorithms and Computation Theory. (2007). Proceedings of the thirty-ninth annual ACM symposium on Theory of computing. New York, NY: ACM.

MLA

Johnson David, Association for Computing Machinery and ACM Special Interest Group on Algorithms and Computation Theory. Proceedings of the thirty-ninth annual ACM symposium on Theory of computing. New York, NY: ACM. 2007.