Não informado. (1980). Science Reports of the Institute of Geoscience, University of Tsukuba. University of Tsukuba, Institute of Geoscience.
Chicago-referens (17:e uppl.)Não informado. Science Reports of the Institute of Geoscience, University of Tsukuba. Tsukuba, Japão: University of Tsukuba, Institute of Geoscience, 1980.
MLA-referens (8:e uppl.)Não informado. Science Reports of the Institute of Geoscience, University of Tsukuba. University of Tsukuba, Institute of Geoscience, 1980.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.