APA (7th ed.) Citation

Johnson, D. (2007). Proceedings of the thirty-ninth annual ACM symposium on Theory of computing. Association for Computing Machinery.

Chicago Style (17th ed.) Citation

Johnson, David. Proceedings of the Thirty-ninth Annual ACM Symposium on Theory of Computing. New York,NY,United States: Association for Computing Machinery, 2007.

MLA (9th ed.) Citation

Johnson, David. Proceedings of the Thirty-ninth Annual ACM Symposium on Theory of Computing. Association for Computing Machinery, 2007.