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
"Escolanía Montserrat and Estrada, Pater Gregori",Montserrat,,"Archiv Produktion,Polydor [distributor]",1974,Die Tradition des Gregorianischen Chorals = The tradition of the Gregorian Chant = La tradition du chant grégorien,,,,https://cir.nii.ac.jp/crid/1130282271335344256