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
"Hauge, Kjetil Rå and Tisheva, Ĭovka",Colloquial Bulgarian : the complete course for beginners,2nd ed,Routledge,2006,Colloquial series,,"0415316251,0415316235",,https://cir.nii.ac.jp/crid/1130282269283154176