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 United States. Environmental Protection Agency. Office of Research and Development. National Risk Management Research Laboratory.,Spectrace TN 9000 and TN Pb field portable x-ray fluorescence analyzers,,"U.S. Environmental Protection Agency, Office of Research and Development",1998,Environmental technology verification report,,,,https://cir.nii.ac.jp/crid/1130282269379223296