APA-referens (7:e uppl.)

STANDARD. (1998). Standard methods for the examination of water and wastewater.-- ed.20. APHA.

Chicago-referens (17:e uppl.)

STANDARD. Standard Methods for the Examination of Water and Wastewater.-- Ed.20. Maryland: APHA, 1998.

MLA-referens (9:e uppl.)

STANDARD. Standard Methods for the Examination of Water and Wastewater.-- Ed.20. APHA, 1998.