Duvoisin, R. C. (1991). Perkinson`s Diseases: A Guide For Family and Patient (3rd.). Raven Press.
Cita Chicago (17th ed.)Duvoisin, Roger C. Perkinson`s Diseases: A Guide For Family and Patient. 3rd. New York: Raven Press, 1991.
Cita MLA (9th ed.)Duvoisin, Roger C. Perkinson`s Diseases: A Guide For Family and Patient. 3rd. Raven Press, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.