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
"Babcock, E. B. and Stebbins, G. L.",The American species of crepis : their interrelationships and distribution as affected by polyploidy and apomixis,,University Microfilms International,1979,Carnegie Institution of Washington publication,,,,https://cir.nii.ac.jp/crid/1130282268732385536