Dyfyniad APA
Ewald, P. W. (1994). Evolution of infectious disease. Oxford University Press.
Dyfyniad Arddull Chicago
Ewald, Paul W. Evolution of Infectious Disease. Oxford ; New York: Oxford University Press, 1994.
Dyfyniad MLA
Ewald, Paul W. Evolution of Infectious Disease. Oxford University Press, 1994.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.