APA (7th ed.) Citation

Kay, J., & Thomas, R. C. (1995). Studying Long-Term System Use. Communications of the ACM, 38(7), 61. https://doi.org/10.1145/213859.214799

Chicago Style (17th ed.) Citation

Kay, Judy, and Richard C. Thomas. "Studying Long-Term System Use." Communications of the ACM 38, no. 7 (1995): 61. https://doi.org/10.1145/213859.214799.

MLA (9th ed.) Citation

Kay, Judy, and Richard C. Thomas. "Studying Long-Term System Use." Communications of the ACM, vol. 38, no. 7, 1995, p. 61, https://doi.org/10.1145/213859.214799.