Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) 小野 慶一,秩父盆地産の中期中新世骨質歯鳥類〔英文〕,"Bulletin of the National Science Museum. Series C, Geology & Paleontology",0385244X,Tokyo : National Science Museum,1989-03,15,1,p33-38,https://cir.nii.ac.jp/crid/1524232504905062272,