APA ציטוט

Aston, I., & Heron, R. (2015). Letters to the editor. Clin Med (Lond).

Citação norma Chicago

Aston, Ian, and Richard Heron. "Letters to the Editor." Clin Med (Lond) 2015.

ציטוט MLA

Aston, Ian, and Richard Heron. "Letters to the Editor." Clin Med (Lond) 2015.