Mémoire du Parti ouvrier belge, juillet 1917 = Memorandum van de Belgische Werkmans-Partij, juli 1917.
Parti socialiste belge,author.
Great Britain.Ministry of Information,former owner.StEdNL
Wellington House collection. Number 238 in the French schedule (corresponds to number 738 in the English schedule under the title Memorandum on peace terms).