Cita APA (7th ed.)
Perkins, L. E., & Perkins, S. (2008). Multiple sclerosis: Your legal rights (3rd ed.). Demos Health.
Cita Chicago (17th ed.)
Perkins, Lanny E., i Sara Perkins. Multiple Sclerosis: Your Legal Rights. 3rd ed. New York: Demos Health, 2008.
Cita MLA (9th ed.)
Perkins, Lanny E., i Sara Perkins. Multiple Sclerosis: Your Legal Rights. 3rd ed. Demos Health, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.