Webb, P., Bain, C., & Pirozzo, S. Essential epidemiology: An introduction for students and health professionals.
Chicago Style (17. basım) AtıfWebb, Penny, Chris Bain, ve Sandi Pirozzo. Essential Epidemiology: An Introduction for Students and Health Professionals.
MLA (9th ed.) AtıfWebb, Penny, et al. Essential Epidemiology: An Introduction for Students and Health Professionals.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..