著者名,タイトル,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) DeNiro M. J.,You are what you eat (plus a few ‰): the carbon isotope cycle in food chains,Geological Society of America Abstracts with Programs,,,1976,8,,834,https://cir.nii.ac.jp/crid/1371131414572979203,