Cita APA (7th ed.)

American Water Works Association, American National Standards Institute, & ebrary, Inc. (2012). Granular activated carbon. American Water Works Association.

Cita Chicago (17th ed.)

American Water Works Association, American National Standards Institute, i Inc ebrary. Granular Activated Carbon. [New York?]: American Water Works Association, 2012.

Cita MLA (9th ed.)

American Water Works Association, et al. Granular Activated Carbon. American Water Works Association, 2012.