Expedition of Prof. Dr. Karl Sapper to Neu-Mecklenburg: Vol. 1 Zur Zwischenablage hinzufügen BArch, R 1001/2373 Akt(e) Aug. 1907 - Apr. 1910 Teil vonFederal Archives (Archivtektonik) In: Expedition of Prof. Dr. Karl Sapper to Neu-Mecklenburg
Expedition of Prof. Dr. Karl Sapper to Neu-Mecklenburg: Vol. 2 Zur Zwischenablage hinzufügen BArch, R 1001/2374 Akt(e) Apr. 1910 - Nov. 1912 Teil vonFederal Archives (Archivtektonik) In: Expedition of Prof. Dr. Karl Sapper to Neu-Mecklenburg
Labour issues and labour relations in German New Guinea, including the recruitment of foreign workers, in particular Indian and Chinese workers: Vol. 14 Zur Zwischenablage hinzufügen BArch, R 1001/2311 Akt(e) Aug. 1908 - Apr. 1910 Teil vonFederal Archives (Archivtektonik) Contains among other things: Health conditions of natives in central Neu-Mecklenburg In: Labour issues and labour relations in German New Guinea, including the recruitment of foreign, mainly Indian and Chinese, workers