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
"Berggren, John Lennart",Finite groups whose irreducible characters over [C/] are real,,University Microfilms,1967,O-P book,,,,https://cir.nii.ac.jp/crid/1130282272052348160