Beck, H. (1979). Carl Ritter, genius of geography: On his life and work. Inter Nationes.
Chicago-Zitierstil (17. Ausg.)Beck, Hanno. Carl Ritter, Genius of Geography: On His Life and Work. Bonn-Bad Godesberg: Inter Nationes, 1979.
MLA-Zitierstil (8. Ausg.)Beck, Hanno. Carl Ritter, Genius of Geography: On His Life and Work. Inter Nationes, 1979.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.