Não informado. (1956). Dental journal. University of Pittsburgh, School of Dentistry.
Chicago-referens (17:e uppl.)Não informado. Dental Journal. Pittsburgh, Pa: University of Pittsburgh, School of Dentistry, 1956.
MLA-referens (8:e uppl.)Não informado. Dental Journal. University of Pittsburgh, School of Dentistry, 1956.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.