APA Edition Citation

Gray, N., & N.F. Gray. (2004). Biology of Wastewater Treatment. Imperial College Press.

Chicago Edition Citation

Gray, N.F, and N.F. Gray. Biology of Wastewater Treatment. London: Imperial College Press, 2004.

MLA Edition Citation

Gray, N.F, and N.F. Gray. Biology of Wastewater Treatment. Imperial College Press, 2004.

Warning: These citations may not always be 100% accurate.