Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

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

Style de citation MLA (8e éd.)

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