APA-referens (7:e uppl.)
American Water Works Association & ebrary, Inc. (2010). Basic science concepts and applications: Student workbook. American Water Works Association.
Chicago-referens (17:e uppl.)
American Water Works Association och Inc ebrary. Basic Science Concepts and Applications: Student Workbook. Denver, Colo.: American Water Works Association, 2010.
MLA-referens (9:e uppl.)
American Water Works Association och Inc ebrary. Basic Science Concepts and Applications: Student Workbook. American Water Works Association, 2010.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.