Cita APA (7a ed.)
(1991). Harrison's principles of internal medicine: Volume 2 (12th ed.). McGraw-Hill.
Cita Chicago Style (17a ed.)
Harrison's Principles of Internal Medicine: Volume 2. 12th ed. New York: McGraw-Hill, 1991.
Cita MLA (9a ed.)
Harrison's Principles of Internal Medicine: Volume 2. 12th ed. McGraw-Hill, 1991.
Precaución: Estas citas no son 100% exactas.