APA (7e ed.) Bronvermelding

Não informado. (1881). Proceedings of the American Water Works Association. American Water Works Association.

Chicago (17e ed.) Bronvermelding

Não informado. Proceedings of the American Water Works Association. Denver, Colo: American Water Works Association, 1881.

MLA (8e ed.) Bronvermelding

Não informado. Proceedings of the American Water Works Association. American Water Works Association, 1881.

Let op: Deze citaties zijn niet altijd 100% accuraat.