Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Kazuyoshi Ida,A study of fossil turritella in Japan,地質調査所報告 = Report Geological Survey of Japan,03665542,つくば : 工業技術院地質調査所,1952-10,,150,1-62,https://cir.nii.ac.jp/crid/1521136280330955648,