Cita APA (7th ed.)

Steffen, R., De Smet, K., Murray, D., & Gill, H. (2011). A Modified Posterior Approach Preserves Femoral Head Oxgenation During Hip Resurfacing.

Cita Chicago (17th ed.)

Steffen, R., K. De Smet, D. Murray, i H. Gill. A Modified Posterior Approach Preserves Femoral Head Oxgenation During Hip Resurfacing. 2011.

Cita MLA (9th ed.)

Steffen, R., et al. A Modified Posterior Approach Preserves Femoral Head Oxgenation During Hip Resurfacing. 2011.