Não informado. (1980). Science Reports of the Institute of Geoscience, University of Tsukuba. University of Tsukuba, Institute of Geoscience.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Science Reports of the Institute of Geoscience, University of Tsukuba. Tsukuba, Japão: University of Tsukuba, Institute of Geoscience, 1980.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Science Reports of the Institute of Geoscience, University of Tsukuba. University of Tsukuba, Institute of Geoscience, 1980.
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