APA

Harrison M. A., Association for Computing Machinery & ACM Special Interest Group on Algorithms and Computation Theory. (1971). Proceedings of the third annual ACM symposium on Theory of computing. New York, NY: ACM.

Chicago

Harrison Michael A, Association for Computing Machinery and ACM Special Interest Group on Algorithms and Computation Theory. 1971. Proceedings of the third annual ACM symposium on Theory of computing. New York, NY: ACM.

Harvard

Harrison M. A., Association for Computing Machinery and ACM Special Interest Group on Algorithms and Computation Theory. (1971). Proceedings of the third annual ACM symposium on Theory of computing. New York, NY: ACM.

MLA

Harrison Michael A, Association for Computing Machinery and ACM Special Interest Group on Algorithms and Computation Theory. Proceedings of the third annual ACM symposium on Theory of computing. New York, NY: ACM. 1971.