International Symposium on Viruses and Wastewater Treatment University of Surrey, Goddard, M., & Butler, M. (1981). Viruses and wastewater treatment: Proceedings of the International Symposium on Viruses and Wastewater Treatment, held at the University of Surrey, Guildford, 15-17 September 1980. Pergamon Press.

International Symposium on Viruses and Wastewater Treatment University of Surrey, M. Goddard, and M. Butler. Viruses and Wastewater Treatment: Proceedings of the International Symposium on Viruses and Wastewater Treatment, Held at the University of Surrey, Guildford, 15-17 September 1980. Oxford ; New York: Pergamon Press, 1981.

International Symposium on Viruses and Wastewater Treatment University of Surrey, et al. Viruses and Wastewater Treatment: Proceedings of the International Symposium on Viruses and Wastewater Treatment, Held at the University of Surrey, Guildford, 15-17 September 1980. Pergamon Press, 1981.