Não informado. (1906). Journal of the American Leather Chemists Association. American Leather Chemists Association.
Chicago-referens (17:e uppl.)Não informado. Journal of the American Leather Chemists Association. Lubbock, Tex: American Leather Chemists Association, 1906.
MLA-referens (8:e uppl.)Não informado. Journal of the American Leather Chemists Association. American Leather Chemists Association, 1906.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.