Não informado. (1912). Science reports of the Tohoku University. Tohoku University, Faculty of Science, Institute of Geology and Paleontology.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Science Reports of the Tohoku University. Sendai, Japão: Tohoku University, Faculty of Science, Institute of Geology and Paleontology, 1912.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Science Reports of the Tohoku University. Tohoku University, Faculty of Science, Institute of Geology and Paleontology, 1912.
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