Não informado. (1912). Science reports of the Tohoku University. Tohoku University, Faculty of Science, Institute of Geology and Paleontology.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Science Reports of the Tohoku University. Sendai, Japão: Tohoku University, Faculty of Science, Institute of Geology and Paleontology, 1912.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Science Reports of the Tohoku University. Tohoku University, Faculty of Science, Institute of Geology and Paleontology, 1912.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.