APA

Association for Computing Machinery, . (1971). Proceedings of the May 18-20, 1971, spring joint computer conference. New York, NY: ACM.

Chicago

Association for Computing Machinery, . 1971. Proceedings of the May 18-20, 1971, spring joint computer conference. New York, NY: ACM.

Harvard

Association for Computing Machinery, . (1971). Proceedings of the May 18-20, 1971, spring joint computer conference. New York, NY: ACM.

MLA

Association for Computing Machinery, . Proceedings of the May 18-20, 1971, spring joint computer conference. New York, NY: ACM. 1971.