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. Dept. of State and United States. Federal Register Division and United States. Consulate (Cologne),"Despatches from United States Consuls in Cologne, 1876-1906 [microform]",,National Archives and Records Service,1961,National Archives microfilm publications,,,,https://cir.nii.ac.jp/crid/1130000797720815488