Dyfyniad APA

Webb, P. E. (2005). Essential epidemiology: An introduction for students and health professionals. Cambridge University Press.

Dyfyniad Arddull Chicago

Webb, Penny Etc. Essential Epidemiology: An Introduction for Students and Health Professionals. Cambridge: Cambridge University Press, 2005.

Dyfyniad MLA

Webb, Penny Etc. Essential Epidemiology: An Introduction for Students and Health Professionals. Cambridge University Press, 2005.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.