Não informado. (1976). General Dentistry. Academy of General Dentistry.
Chicago-referens (17:e uppl.)Não informado. General Dentistry. Chicago, Ill: Academy of General Dentistry, 1976.
MLA-referens (8:e uppl.)Não informado. General Dentistry. Academy of General Dentistry, 1976.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.