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Hamburgisches Welt-Wirtschafts-Archiv (HWWA) - Countries-subjects folders
German East Africa : Irrigation, drainage
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(23 documents / 23 available on the web)
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Country/geo
German East Africa
Subject
Irrigation, drainage
URI
https://pm20.zbw.eu/folder/sh/141471,145073
ID
sh/141471,145073