Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Szemerényi, Oswald John Louis",Los Años cincuenta (1950-1960),,Gredos,1986,Biblioteca románica hispánica,,"8424910443,8424910451",,https://cir.nii.ac.jp/crid/1130282268801697920