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
"Wagner, Peter and Crocker, Richard L.","Introduction to the Gregorian melodies : a handbook of plainsong, Part 1, Origin and development of the forms of the liturgical chant up to the end of the Middle Ages","2nd ed., completely rev. and enlarged",Da Capo Press,1986,Da Capo Press music reprint series,,0306762846,,https://cir.nii.ac.jp/crid/1130000797983954432