Vierzig Jahre Deutsche Kolonialarbeit :  gedenkschrift zum 24. April 1924. 

 - Berlin :  Agencia Duems,  1924. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Colonies -- Administration.--Colonies -- Administration.<br/>Colonies -- Commerce.--Colonies -- Commerce.<br/>Land settlement.<br/>Missions.<br/>Colonies -- Research.--Colonies -- Research.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Germany -- Colonies -- Africa.--Germany -- Colonies -- Africa.--Germany -- Colonies -- Africa.