(2014). Safety management for utilities (Seventh edition.). American Water Works Association.
Citazione stile Chigago Style (17a edizione)Safety Management for Utilities. Seventh edition. Denver, Colorado: American Water Works Association, 2014.
Citatione MLA (9a ed.)Safety Management for Utilities. Seventh edition. American Water Works Association, 2014.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.