Cita APA (7a ed.)

Boutron, I., Ravaud, P., & Altman, D. (2010). In reply.

Cita Chicago Style (17a ed.)

Boutron, I., P. Ravaud, y D. Altman. In Reply. 2010.

Cita MLA (9a ed.)

Boutron, I., et al. In Reply. 2010.