Cita APA (7th ed.)
American Water Works Association & ebrary, Inc. (2010). Basic science concepts and applications: Student workbook. American Water Works Association.
Cita Chicago (17th ed.)
American Water Works Association i Inc ebrary. Basic Science Concepts and Applications: Student Workbook. Denver, Colo.: American Water Works Association, 2010.
Cita MLA (9th ed.)
American Water Works Association i Inc ebrary. Basic Science Concepts and Applications: Student Workbook. American Water Works Association, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.