Cita APA (7th ed.)
Logsdon, G. S. (2008). Water filtration practices: Including slow sand filters and precoat filtration. American Water Works Association.
Cita Chicago (17th ed.)
Logsdon, Gary S. Water Filtration Practices: Including Slow Sand Filters and Precoat Filtration. Denver, Colo.: American Water Works Association, 2008.
Cita MLA (9th ed.)
Logsdon, Gary S. Water Filtration Practices: Including Slow Sand Filters and Precoat Filtration. American Water Works Association, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.