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Zur sozialgeographischen Theorie und Erfassung des täglichen Berufspendelns
Klingbeil, Detlev, (1969)
Urban social areas
Robson, Brian T., (1975)
Houseboat and river-bottoms People : a study of 683 households in sample localities adjacent to the Ohio and Mississippi Rivers
Hiller, Ernest Theodore, (1939)
The urban scene : human ecology and demography
Schnore, Leo Francis, (1965)
The city as a social organism
Schnore, Leo F., (1969)
Demography and human ecology : some apparent trends
Schnore, Leo F., (1970)