@misc{Geisler_Walter_(1891-1945)_Beiträge,
 author={Geisler, Walter (1891-1945)},
 howpublished={online},
 publisher={[s.n.]},
 language={ger},
 type={książka},
 title={Beiträge zur Stadtgeographie},
 keywords={geografia miast},
}