Bishop, E. M. (2004). Hiking Oregon's geology (2nd ed.). Mountaineers Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBishop, Ellen Morris. Hiking Oregon's Geology. 2nd ed. Seattle, WA: Mountaineers Books, 2004.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBishop, Ellen Morris. Hiking Oregon's Geology. 2nd ed. Mountaineers Books, 2004.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.