Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) BARRON J. A.,"Upper Pliocene and Quaternary diatom biostratigraphy of Deep Sea Drilling Project Leg 54, Tropical eastern Pacific.",Initial Reports of the Deep Sea Drilling Project.,,U. S. Govt. Printing Office,1980,54,,455-485,https://cir.nii.ac.jp/crid/1570572699515524096,