Não informado. (1925). Annales de l' economie collective. International Centre of Research and Information on Public and Cooperative Economy.
Chicago-referens (17:e uppl.)Não informado. Annales De L' Economie Collective. Liège, Belgica: International Centre of Research and Information on Public and Cooperative Economy, 1925.
MLA-referens (8:e uppl.)Não informado. Annales De L' Economie Collective. International Centre of Research and Information on Public and Cooperative Economy, 1925.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.