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
"Henry, Draper and George, ritchey","On the construction of a silvered glass telescope, fifteen and a half inches in aperture, and its use in clelstial photography . On the modern refelcting telescope and the making and testing of optical mirrors",,U.M.I.(University Microfilms International),1904,Smithsonian contributions to knowledge,,,,https://cir.nii.ac.jp/crid/1130000796711047168