Luttrell, C. T. (2001). Three fossil discoveries in Washington Territory and their histories, 1876 to present.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLuttrell, Charles T. Three Fossil Discoveries in Washington Territory and Their Histories, 1876 to Present. 2001.
एमएलए (8वां संस्करण) प्रशस्ति पत्रLuttrell, Charles T. Three Fossil Discoveries in Washington Territory and Their Histories, 1876 to Present. 2001.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.