Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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