Washington Natural Heritage Program. (1982). Washington Natural Heritage Program report. Dept. of Natural Resources.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWashington Natural Heritage Program. Washington Natural Heritage Program Report. [Olympia]: Dept. of Natural Resources, 1982.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWashington Natural Heritage Program. Washington Natural Heritage Program Report. Dept. of Natural Resources, 1982.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.