Cita APA (7a ed.)
(2019). Letters to the Editor Issue 256. Positive Health, 256, -1.
Cita Chicago Style (17a ed.)
"Letters to the Editor Issue 256." Positive Health 256 (2019): -1.
Cita MLA (9a ed.)
"Letters to the Editor Issue 256." Positive Health, 256, 2019, pp. -1.
Precaución: Estas citas no son 100% exactas.