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
"Dunbar, Ralph M. and Foster, Emery M. and United States. Office of Education","College and university library statistics, 1939-1940",,G.P.O.,1943,"Biennial survey of education in the United States, 1938-40",,,,https://cir.nii.ac.jp/crid/1130000796735256960