APA (7th ed.) Citation

Chapin, N., Denning, P. J., Rose, L. A., Cichelli, M. J., Clemons, E. K., Gerretsen, R., . . . Weicker, R. (1977). acm forum. Communications of the ACM, 20(6), 445. https://doi.org/10.1145/359605.359635

Chicago Style (17th ed.) Citation

Chapin, Ned, et al. "Acm Forum." Communications of the ACM 20, no. 6 (1977): 445. https://doi.org/10.1145/359605.359635.

MLA (9th ed.) Citation

Chapin, Ned, et al. "Acm Forum." Communications of the ACM, vol. 20, no. 6, 1977, p. 445, https://doi.org/10.1145/359605.359635.