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| Utgitt
| London : G. Allen & Unwin ltd , [1938]
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| Omfang
| 3 s. l., [9]-531, [1] s. : incl. illus. (maps) tables, diagrs.
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| Opplysninger
| "First published in 1938.". - Based on inquiries undertaken by the Department of social biology in the University of London.
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| Emner
| |
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