Hansen, R., & Elson, F. A beginner's geology of the Spokane area. Spokane Area Community Resources Workshop.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHansen, Rosella, और Frances Elson. A Beginner's Geology of the Spokane Area. Spokane: Spokane Area Community Resources Workshop.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHansen, Rosella, और Frances Elson. A Beginner's Geology of the Spokane Area. Spokane Area Community Resources Workshop.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.