Não informado. (1921). Journal of the Missouri State Dental Association. Missouri State Dental Association.
Chicago-referens (17:e uppl.)Não informado. Journal of the Missouri State Dental Association. Jefferson City, Mo: Missouri State Dental Association, 1921.
MLA-referens (8:e uppl.)Não informado. Journal of the Missouri State Dental Association. Missouri State Dental Association, 1921.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.