Cita APA (7a ed.)

B, R., C, H., & G, G. (2013). Letter to the editor. Dove Medical Press.

Cita Chicago Style (17a ed.)

B, Ralla, Holtmann C, y Geerling G. Letter to the Editor. Dove Medical Press, 2013.

Cita MLA (8a ed.)

B, Ralla, et al. Letter to the Editor. Dove Medical Press, 2013.