Cita APA

American Public Health Association, American Public Health Association, American Water Works Association, & Water environment Federation. (2005). Standard methods for the examination of water & wastewater / (21 edition.). Washington, Estados Unidos de América: American Public Health Association.

Citación estilo Chicago

American Public Health Association, American Public Health Association, American Water Works Association, y Water environment Federation. Standard Methods for the Examination of Water & Wastewater /. 21 edition. Washington, Estados Unidos de América: American Public Health Association, 2005.

Cita MLA

American Public Health Association, American Public Health Association, American Water Works Association, y Water environment Federation. Standard Methods for the Examination of Water & Wastewater /. 21 edition. Washington, Estados Unidos de América: American Public Health Association, 2005.