APA

Association for Computing Machinery, . (1967). Proceedings of the April 18-20, 1967, spring joint computer conference. New York, NY: ACM.

Chicago

Association for Computing Machinery, . 1967. Proceedings of the April 18-20, 1967, spring joint computer conference. New York, NY: ACM.

Harvard

Association for Computing Machinery, . (1967). Proceedings of the April 18-20, 1967, spring joint computer conference. New York, NY: ACM.

MLA

Association for Computing Machinery, . Proceedings of the April 18-20, 1967, spring joint computer conference. New York, NY: ACM. 1967.