Cita APA (7th ed.)

Heneghan, C., Langton, D., & Thompson, M. (2012). Ongoing problems with metal-on-metal hip implants.

Cita Chicago (17th ed.)

Heneghan, C., D. Langton, i M. Thompson. Ongoing Problems with Metal-on-metal Hip Implants. 2012.

Cita MLA (9th ed.)

Heneghan, C., et al. Ongoing Problems with Metal-on-metal Hip Implants. 2012.