APA Edition Citation

Eaton( Andrew D.) et al. (2005). Standard methods for the examination of water and waste water (21.).

Chicago Edition Citation

Eaton( Andrew D.) et al. Standard Methods for the Examination of Water and Waste Water. 21. American Public Health Association, 2005.

MLA Edition Citation

Eaton( Andrew D.) et al. Standard Methods for the Examination of Water and Waste Water. 21. 2005.