Washington (State). Solid Waste Management Division. (1980). Washington State solid waste management plan. Dept. of Ecology.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWashington (State). Solid Waste Management Division. Washington State Solid Waste Management Plan. Olympia, Wash.: Dept. of Ecology, 1980.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWashington (State). Solid Waste Management Division. Washington State Solid Waste Management Plan. Dept. of Ecology, 1980.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.