著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "International Symposium on Geology and Geochemistry of Manganese and Varent︠s︡ov, I. M. and Grasselly, Gy. (Gyula)","General problems : mineralogy, geochemistry, methods",,E. Schweizerbart'sche Verlagsbuchhandlung,1980,"Geology and geochemistry of manganese : proceedings of the 2nd International Symposium on Geology and Geochemistry of Manganese, held in Sydney, Australia, 17-24 August 1976",,3510650980,,https://cir.nii.ac.jp/crid/1130282270453511552