著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) D. Bukry,Low-Latitude Coccolith Biostratigraphic Zonation,Initial Reports of the Deep Sea Drilling Project,,U.S. Government Printing Office,1973-12,,,,https://cir.nii.ac.jp/crid/1362825895366143104,https://doi.org/10.2973/dsdp.proc.15.116.1973