Cita APA (7th ed.)

Choy, E. (2009). Fibromyalgia syndrome. Oxford University Press.

Cita Chicago (17th ed.)

Choy, Ernest. Fibromyalgia Syndrome. Oxford ; New York: Oxford University Press, 2009.

Cita MLA (9th ed.)

Choy, Ernest. Fibromyalgia Syndrome. Oxford University Press, 2009.