APA (7 वां संस्करण) प्रशस्ति पत्र
American Water Works Association & ebrary, Inc. (2001). Emergency planning for water utilities (4th ed.). American Water Works Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
American Water Works Association और Inc ebrary. Emergency Planning for Water Utilities. 4th ed. Denver, Colo.: American Water Works Association, 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
American Water Works Association और Inc ebrary. Emergency Planning for Water Utilities. 4th ed. American Water Works Association, 2001.
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