APA (7th ed.) Citation

Z User Workshop London, England, Bowen, J. P., & Nicholls, J. E. (1993). Z User Workshop, London 1992: Proceedings of the Seventh annual Z User Meeting, London, 14-15 December 1992. Springer-Verlag.

Chicago Style (17th ed.) Citation

Z User Workshop London, England, J. P. Bowen, and John E. Nicholls. Z User Workshop, London 1992: Proceedings of the Seventh Annual Z User Meeting, London, 14-15 December 1992. London ; New York: Springer-Verlag, 1993.

MLA (9th ed.) Citation

Z User Workshop London, England, et al. Z User Workshop, London 1992: Proceedings of the Seventh Annual Z User Meeting, London, 14-15 December 1992. Springer-Verlag, 1993.