Cita APA (7th ed.)

Twort, A. C. (1994). Water supply (4th ed.). Edward Arnold.

Cita Chicago (17th ed.)

Twort, A. C. Water Supply. 4th ed. London: Edward Arnold, 1994.

Cita MLA (8th ed.)

Twort, A. C. Water Supply. 4th ed. Edward Arnold, 1994.