Dyfyniad APA

Hall,Ross Hume. (1990). Health and the global environment. Polity Press.

Dyfyniad Arddull Chicago

Hall,Ross Hume. Health and the Global Environment. UK: Polity Press, 1990.

Dyfyniad MLA

Hall,Ross Hume. Health and the Global Environment. Polity Press, 1990.

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