Ebers, G., Sadovnick, A., & Veith, R. (2004). Vitamin D intake and incidence of multiple sclerosis.
Chicago Style aipamenaEbers, G., A. Sadovnick, and R. Veith. Vitamin D Intake and Incidence of Multiple Sclerosis. 2004.
MLA aipamenaEbers, G., et al. Vitamin D Intake and Incidence of Multiple Sclerosis. 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.