Cita APA (7th ed.)
Gilliam, F. S. (2014). The herbaceous layer in forests of eastern North America (Second edition.). Oxford University Press.
Cita Chicago (17th ed.)
Gilliam, Frank S. The Herbaceous Layer in Forests of Eastern North America. Second edition. New York, New York: Oxford University Press, 2014.
Cita MLA (9th ed.)
Gilliam, Frank S. The Herbaceous Layer in Forests of Eastern North America. Second edition. Oxford University Press, 2014.
Atenció: Aquestes cites poden no estar 100% correctes.