Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL United States. National Archives and Records Service and United States. Dept. of State and United States. Consulate (Oldenburg),"Despatches from United States Consuls in Oldenburg, 1856-1869 [microform]",,"National Archives and Records Service,Scholarly Resources [distributor?]",1960,National Archives microfilm publications,,,,https://cir.nii.ac.jp/crid/1130000798230471168