Cita APA (7th ed.)

Ashley, E., Mcgready, R., Singhasivanon, P., Nosten, F., Carrara, V., & Price, R. (2006). Letters to the editors.

Cita Chicago (17th ed.)

Ashley, E., R. Mcgready, P. Singhasivanon, F. Nosten, V. Carrara, i R. Price. Letters to the Editors. 2006.

Cita MLA (9th ed.)

Ashley, E., et al. Letters to the Editors. 2006.