Não informado. (1939). Dental Laboratory News. Dental Laboratory Association of the State of New York.
Chicago-referens (17:e uppl.)Não informado. Dental Laboratory News. New York: Dental Laboratory Association of the State of New York, 1939.
MLA-referens (8:e uppl.)Não informado. Dental Laboratory News. Dental Laboratory Association of the State of New York, 1939.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.