APA-viite (7. p.)
Pizzi, N. G. (2006). Filter operations field guide. American Water Works Association.
Chicago-viite (17. p.)
Pizzi, Nicholas G. Filter Operations Field Guide. Denver, CO: American Water Works Association, 2006.
MLA-viite (9. p.)
Pizzi, Nicholas G. Filter Operations Field Guide. American Water Works Association, 2006.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.