Washington (State) & Washington (State). Department of Water Resources. (1970). Surface and ground water codes. State of Washington, Dept. of Ecology.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWashington (State) और Washington (State). Department of Water Resources. Surface and Ground Water Codes. Olympia, Wash.: State of Washington, Dept. of Ecology, 1970.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWashington (State) और Washington (State). Department of Water Resources. Surface and Ground Water Codes. State of Washington, Dept. of Ecology, 1970.
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