APA (7th ed.) Citation

Gorn, S. (1966). Code Extension in ASCII (An ASA Tutorial). Communications of the ACM, 9(10), 758. https://doi.org/10.1145/365844.365870

Chicago Style (17th ed.) Citation

Gorn, S. "Code Extension in ASCII (An ASA Tutorial)." Communications of the ACM 9, no. 10 (1966): 758. https://doi.org/10.1145/365844.365870.

MLA (9th ed.) Citation

Gorn, S. "Code Extension in ASCII (An ASA Tutorial)." Communications of the ACM, vol. 9, no. 10, 1966, p. 758, https://doi.org/10.1145/365844.365870.