Alvarez-Dardet, C., & Ashton, J. (2005). Is epidemiology popular enough? BMJ Group.
Chicago Style aipamenaAlvarez-Dardet, C., and J. Ashton. Is Epidemiology Popular Enough? BMJ Group, 2005.
MLA aipamenaAlvarez-Dardet, C., and J. Ashton. Is Epidemiology Popular Enough? BMJ Group, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.