APA (7th ed.) Citation

James, D. (2018). Algol 68 -- A Retrospective. Overload, 148, 20.

Chicago Style (17th ed.) Citation

James, Daniel. "Algol 68 -- A Retrospective." Overload 148 (2018): 20.

MLA (9th ed.) Citation

James, Daniel. "Algol 68 -- A Retrospective." Overload, 148, 2018, p. 20.

Warning: These citations may not always be 100% accurate.