Merkoša sitáhtat
APA-čujuhus (7. p.)
ebrary, Inc. (2004). Guidelines for drinking-water quality (3rd ed.). World Health Organization.
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Chicago-čujuhus (17. p.)
ebrary, Inc. Guidelines for Drinking-water Quality. 3rd ed. Geneva: World Health Organization, 2004.
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MLA-čujuhus (9. p.)
ebrary, Inc. Guidelines for Drinking-water Quality. 3rd ed. World Health Organization, 2004.
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