Dyfyniad APA

McMichael, T. (2001). Human frontiers, environments and disease: past patterns: Uncertain futures. Univ. Pr.

Dyfyniad Arddull Chicago

McMichael, Tony. Human Frontiers, Environments and Disease: Past Patterns: Uncertain Futures. Cambridge: Univ. Pr, 2001.

Dyfyniad MLA

McMichael, Tony. Human Frontiers, Environments and Disease: Past Patterns: Uncertain Futures. Univ. Pr, 2001.

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