APA (7 वां संस्करण) प्रशस्ति पत्र
ebrary, Inc. (2004). Guidelines for drinking-water quality (3rd ed.). World Health Organization.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
ebrary, Inc. Guidelines for Drinking-water Quality. 3rd ed. Geneva: World Health Organization, 2004.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
ebrary, Inc. Guidelines for Drinking-water Quality. 3rd ed. World Health Organization, 2004.
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