Rothman, K. J., & Greenland, S. (2008). Modern epidemiology (3rd ed.). Lippincott.
Chicago Style aipamenaRothman, Kenneth J., and Sander Greenland. Modern Epidemiology. 3rd ed. Philadelphia, PA: Lippincott, 2008.
MLA aipamenaRothman, Kenneth J., and Sander Greenland. Modern Epidemiology. 3rd ed. Lippincott, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.