Clark, R. D. (1989). The odyssey of Thomas Condon: Irish immigrant, American frontier missionary, Oregon geologist. Oregon Historical Society Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रClark, Robert D. The Odyssey of Thomas Condon: Irish Immigrant, American Frontier Missionary, Oregon Geologist. Portland, OR: Oregon Historical Society Press, 1989.
एमएलए (8वां संस्करण) प्रशस्ति पत्रClark, Robert D. The Odyssey of Thomas Condon: Irish Immigrant, American Frontier Missionary, Oregon Geologist. Oregon Historical Society Press, 1989.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.