Dyfyniad APA

McNeill, J. (2010). Environmental history. Oxford University Press.

Dyfyniad Arddull Chicago

McNeill, John. Environmental History. Delhi: Oxford University Press, 2010.

Dyfyniad MLA

McNeill, John. Environmental History. Oxford University Press, 2010.

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