Cita APA (7th ed.)
(2000). Harrison's principles of internal medicine (15th ed.). McGraw-Hill.
Cita Chicago (17th ed.)
Harrison's Principles of Internal Medicine. 15th ed. New york: McGraw-Hill, 2000.
Cita MLA (9th ed.)
Harrison's Principles of Internal Medicine. 15th ed. McGraw-Hill, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.