Ebers, G., Sadovnick, A., & Veith, R. (2004). Vitamin D intake and incidence of multiple sclerosis.
Cita Chicago Style (17a ed.)Ebers, G., A. Sadovnick, y R. Veith. Vitamin D Intake and Incidence of Multiple Sclerosis. 2004.
Cita MLA (9a ed.)Ebers, G., et al. Vitamin D Intake and Incidence of Multiple Sclerosis. 2004.
Precaución: Estas citas no son 100% exactas.