Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Cortina, R. Diez de la (Rafael Diez de la) and Lange, Eva C.",Collins Cortina German in 20 lessons illustrated ; intended for private study and for use in schools ; with a new system of simplified phonetic pronunciation,1st Collins Cortina ed / based on the method of R.Diez de la Cortina by Eva C.Lange,Collins,1962,Collins Cortina language books,,,,https://cir.nii.ac.jp/crid/1130282273349988096