Dyfyniad APA
Gilliam, F. S. (2014). The herbaceous layer in forests of eastern North America (Second edition.). Oxford University Press.
Dyfyniad Arddull Chicago
Gilliam, Frank S. The Herbaceous Layer in Forests of Eastern North America. Second edition. New York, New York: Oxford University Press, 2014.
Dyfyniad MLA
Gilliam, Frank S. The Herbaceous Layer in Forests of Eastern North America. Second edition. Oxford University Press, 2014.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.