Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Haubrich, Hartwig and Hillers, Elfriede","International focus on geographical education : aims, content and recent development of geographical education in 30 countries from 5 continents",,Georg-Eckert-Institut für Internationale Schulbuchforschung,1982,Studien zur internationalen Schulbuchforschung,,388304234X,,https://cir.nii.ac.jp/crid/1130282270216747392