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. 4
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. 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. 7
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. 8
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. 9
German possessions in Kaiser-Wilhelmland and the Bismarck Archipelago. - Relations with the Marshall Islands, Caroline Islands, Duke of York Islands, New Ireland and New Britain and the Ralick and Ellice Islands
J. Graf von Pfeil, "The Economic Development of the Bismarck Archipelago" - Continued Series - In: Deutsche Kolonialzeitung. Organ of the German Colonial Society
Labour issues and labour relations in German New Guinea, including the recruitment of foreign workers, in particular Indian and Chinese workers: Vol. 14