Cita APA (7th ed.)

Khan, M. A. (2009). Ankylosing spondylitis. Oxford University Press.

Cita Chicago (17th ed.)

Khan, Muhammad Asim. Ankylosing Spondylitis. Oxford ; New York: Oxford University Press, 2009.

Cita MLA (9th ed.)

Khan, Muhammad Asim. Ankylosing Spondylitis. Oxford University Press, 2009.