Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) 永野 秀雄 and NAGANO Hideo,Classification and Declassification of National Secrets in the United States : Our Preparatory Studies of a Secret Protection Bill in Japan,人間環境論集,13453785,法政大学人間環境学会,2012-03,12,2,1-102,https://cir.nii.ac.jp/crid/1390572174780245632,https://doi.org/10.15002/00007958