著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL Symposium on the Use of Isotopes in Studies of Nitrogen Metabolism in the Soil-Plant-Animal System and International Atomic Energy Agency and Food and Agriculture Organization of the United Nations and Joint Commission on Applied Radioactivity,Isotope studies on the nitrogen chain : proceedings of the Symposium on the Use of Isotopes in Studies of Nitrogen Metabolism in the Soil-Plant-Animal System,,International Atomic Energy Agency,1968,Proceedings series,,,,https://cir.nii.ac.jp/crid/1130282272003151744