General conditions in Kaiser-Wilhelms-Land and the Bismarck Archipelago. - Administration, social, economic and political development, local population, punitive expeditions, scientific expeditions: vol. 10
General conditions in Kaiser-Wilhelms-Land and the Bismarck Archipelago. - Administration, social, economic and political development, local population, punitive expeditions, scientific expeditions: vol. 15
General conditions in Kaiser-Wilhelms-Land and the Bismarck Archipelago. - Administration, social, economic and political development, local population, punitive expeditions, scientific expeditions: vol. 6
German possessions in Kaiser-Wilhelmland and the Bismarck Archipelago. - Relations with Marshall Islands, Caroline Islands, Duke of York Islands, New Ireland and New Britain as well as Ralick and Ellice Islands: vol. 16
German possessions in Kaiser-Wilhelmland and the Bismarck Archipelago. - Relations with Marshall Islands, Caroline Islands, Duke of York Islands, New Ireland and New Britain as well as Ralick and Ellice Islands: vol. 2
German possessions in Kaiser-Wilhelmland and the Bismarck Archipelago. - Relations with Marshall Islands, Caroline Islands, Duke of York Islands, New Ireland and New Britain as well as Ralick and Ellice Islands: vol. 5
German possessions in Kaiser-Wilhelmland and the Bismarck Archipelago. - Relations with Marshall Islands, Caroline Islands, Duke of York Islands, New Ireland and New Britain as well as Ralick and Ellice Islands: vol. 7
