Washington Trails Association. (2001). Washington trails. Washington Trails Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWashington Trails Association. Washington Trails. Seattle, WA: Washington Trails Association, 2001.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWashington Trails Association. Washington Trails. Washington Trails Association, 2001.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.