Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Zardoya, Concha",Poesía española del siglo XX [i.e. veinte] : estudios temáticos y estilísticos,,Editorial Gredos,1974,Biblioteca románica hispánica,,"8424905482,8424905474,8424905504,8424905490,8424905520,8424905512,8424905547,8424905539,8424905563,8424905555",,https://cir.nii.ac.jp/crid/1130000796786518016