Sweet's Catalog Service. (1952). Product design file. Sweet's Catalog Service.
Chicago-referens (17:e uppl.)Sweet's Catalog Service. Product Design File. New York: Sweet's Catalog Service, 1952.
MLA-referens (8:e uppl.)Sweet's Catalog Service. Product Design File. Sweet's Catalog Service, 1952.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.