Não informado. (1912). Science reports of the Tohoku University. Tohoku University, Faculty of Science, Institute of Geology and Paleontology.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Science Reports of the Tohoku University. Sendai, Japão: Tohoku University, Faculty of Science, Institute of Geology and Paleontology, 1912.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Science Reports of the Tohoku University. Tohoku University, Faculty of Science, Institute of Geology and Paleontology, 1912.
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