Webb, Penny. Essential epidemiology: an introduction for students and health professionals [online]. Third edition. Cambridge: Cambridge University Press, 2017. Cambridge medicine
Webb, P. (2017). Essential epidemiology: An introduction for students and health professionals (Third edition.). Cambridge: Cambridge University Press.
Styl ChicagoWebb, Penny. Essential Epidemiology: An Introduction for Students and Health Professionals. Third edition. Cambridge: Cambridge University Press, 2017.
Citace podle MLAWebb, Penny. Essential Epidemiology: An Introduction for Students and Health Professionals. Third edition. Cambridge: Cambridge University Press, 2017.
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