American Water Works Association & ebrary, Inc. (2002). Safety practices for water utilities (6th ed.). American Water Works Association.
Цитирование в стиле Чикаго (17-е изд.)American Water Works Association и Inc ebrary. Safety Practices for Water Utilities. 6th ed. Denver, CO: American Water Works Association, 2002.
Цитирование MLA (9-е изд.)American Water Works Association и Inc ebrary. Safety Practices for Water Utilities. 6th ed. American Water Works Association, 2002.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.