Cita APA (7a ed.)
JP, C., & JM, J. (2007). Pyoderma gangrenosum: An update. Rheumatic Disease Clinics of North America, 33(4), 787-804.
Cita Chicago Style (17a ed.)
JP, Callen, y Jackson JM. "Pyoderma Gangrenosum: An Update." Rheumatic Disease Clinics of North America 33, no. 4 (2007): 787-804.
Cita MLA (9a ed.)
JP, Callen, y Jackson JM. "Pyoderma Gangrenosum: An Update." Rheumatic Disease Clinics of North America, vol. 33, no. 4, 2007, pp. 787-804.
Precaución: Estas citas no son 100% exactas.