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1Published: Wiesbaden | Statistisches Bundesamt | 1953Book
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2Published: Stuttgart | Kohlhammer | 1958Book
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3Published: Wiesbaden | Statistisches Bundesamt | 1996Book
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4Published: Stuttgart [u.a.] | Kohlhammer | [1955]Book
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5
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6Published: Stuttgart [u.a.] | Kohlhammer | 1961Book