Não informado. (1980). Yearbook of orthopedics. Year Book Medical Publishers.
Citace podle Chicago (17th ed.)Não informado. Yearbook of Orthopedics. Chicago, Ill: Year Book Medical Publishers, 1980.
Citace podle MLA (8th ed.)Não informado. Yearbook of Orthopedics. Year Book Medical Publishers, 1980.
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