APA (7th ed.) Citation

Gray, N. F. (2004). Biology of wastewater treatment (2nd ed.). Imperial College Press.

Chicago Style (17th ed.) Citation

Gray, N. F. Biology of Wastewater Treatment. 2nd ed. London: Imperial College Press, 2004.

MLA (9th ed.) Citation

Gray, N. F. Biology of Wastewater Treatment. 2nd ed. Imperial College Press, 2004.

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