Citazione Stile APA (7a Edizione)

Twort, A. C., Brandt, M. J., & Ratnayaka, D. D. (2000). Water supply (5th ed.). Arnold/IWA Pub..

Citazione stile Chigago Style (17a edizione)

Twort, A. C., Malcolm J. Brandt, e Don D. Ratnayaka. Water Supply. 5th ed. London: Arnold/IWA Pub., 2000.

Citatione MLA (9a ed.)

Twort, A. C., et al. Water Supply. 5th ed. Arnold/IWA Pub., 2000.