Cita APA (7a ed.)

Weil, U. H., & Buchhorn, G. (1981). Segmental idiopathic necrosis of the femoral head. Springer.

Cita Chicago Style (17a ed.)

Weil, U. H., y G. Buchhorn. Segmental Idiopathic Necrosis of the Femoral Head. Berlin [etc.]: Springer, 1981.

Cita MLA (9a ed.)

Weil, U. H., y G. Buchhorn. Segmental Idiopathic Necrosis of the Femoral Head. Springer, 1981.