Não informado. (1980). Yearbook of orthopedics. Year Book Medical Publishers.
Chicago-Zitierstil (17. Ausg.)Não informado. Yearbook of Orthopedics. Chicago, Ill: Year Book Medical Publishers, 1980.
MLA-Zitierstil (8. Ausg.)Não informado. Yearbook of Orthopedics. Year Book Medical Publishers, 1980.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.