APA (7th ed.) Citation

ACM Special Interest Group on Programming Languages. Technical Committee on APL & SIGAPL. APL quote quad. Association for Computing Machinery [etc.].

Chicago Style (17th ed.) Citation

ACM Special Interest Group on Programming Languages. Technical Committee on APL and SIGAPL. APL Quote Quad. [New York, N.Y. etc.]: Association for Computing Machinery [etc.].

MLA (9th ed.) Citation

ACM Special Interest Group on Programming Languages. Technical Committee on APL and SIGAPL. APL Quote Quad. Association for Computing Machinery [etc.].