APA (7th ed.) Citation

Conference on Programmable Controllers London, England, GAMBICA Programmable Controllers Committee, & Lawrenson, P. J. (1985). Proceedings of the Conference on Programmable Controllers '85, 17th-19th July 1985, London, Olympia 2. P. Peregrinus.

Chicago Style (17th ed.) Citation

Conference on Programmable Controllers London, England, GAMBICA Programmable Controllers Committee, and P. J. Lawrenson. Proceedings of the Conference on Programmable Controllers '85, 17th-19th July 1985, London, Olympia 2. London: P. Peregrinus, 1985.

MLA (8th ed.) Citation

Conference on Programmable Controllers London, England, et al. Proceedings of the Conference on Programmable Controllers '85, 17th-19th July 1985, London, Olympia 2. P. Peregrinus, 1985.