APA (7th ed.) Citation

Harrison, T. R., & Wilson, J. D. (1991). Harrison's principles of internal medicine (12th ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Harrison, Tinsley Randolph, and Joan D. Wilson. Harrison's Principles of Internal Medicine. 12th ed. New York: McGraw-Hill, 1991.

MLA (9th ed.) Citation

Harrison, Tinsley Randolph, and Joan D. Wilson. Harrison's Principles of Internal Medicine. 12th ed. McGraw-Hill, 1991.