APA (7th ed.) Citation

Twort, A. C., & Ratnayaka, D. D. Water supply (5th ed.).

Chicago Style (17th ed.) Citation

Twort, A. C., and Don D. Ratnayaka. Water Supply. 5th ed.

MLA (8th ed.) Citation

Twort, A. C., and Don D. Ratnayaka. Water Supply. 5th ed.

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