Cita APA

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

Citación estilo Chicago

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

Cita MLA

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