Dyfyniad APA
McMichael, A. J. (2001). Human frontiers, environments, and disease: Past patterns, uncertain futures. Cambridge University Press.
Dyfyniad Arddull Chicago
McMichael, A. J. Human Frontiers, Environments, and Disease: Past Patterns, Uncertain Futures. Cambridge ; New York: Cambridge University Press, 2001.
Dyfyniad MLA
McMichael, A. J. Human Frontiers, Environments, and Disease: Past Patterns, Uncertain Futures. Cambridge University Press, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.