Dyfyniad APA

Webb, P., Bain, C., & Pirozzo, S. Essential epidemiology: An introduction for students and health professionals.

Dyfyniad Arddull Chicago

Webb, Penny, Chris Bain, and Sandi Pirozzo. Essential Epidemiology: An Introduction for Students and Health Professionals.

Dyfyniad MLA

Webb, Penny, et al. Essential Epidemiology: An Introduction for Students and Health Professionals.

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