Eaton( Andrew D.) et al. (2005). Standard methods for the examination of water and waste water (21.).
Chicago Style aipamenaEaton( Andrew D.) et al. Standard Methods for the Examination of Water and Waste Water. 21. American Public Health Association, 2005.
MLA aipamenaEaton( Andrew D.) et al. Standard Methods for the Examination of Water and Waste Water. 21. 2005.
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