APA (7th ed.) Citation

Cook, S. A. (1983). Overview of computational complexity. Communications of the ACM, 26, 401. https://doi.org/10.1145/358141.358144

Chicago Style (17th ed.) Citation

Cook, S. A. "Overview of Computational Complexity." Communications of the ACM 26 (1983): 401. https://doi.org/10.1145/358141.358144.

MLA (9th ed.) Citation

Cook, S. A. "Overview of Computational Complexity." Communications of the ACM, vol. 26, 1983, p. 401, https://doi.org/10.1145/358141.358144.