Não informado. (1980). Yearbook of orthopedics. Year Book Medical Publishers.
Chicago-referens (17:e uppl.)Não informado. Yearbook of Orthopedics. Chicago, Ill: Year Book Medical Publishers, 1980.
MLA-referens (8:e uppl.)Não informado. Yearbook of Orthopedics. Year Book Medical Publishers, 1980.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.