Citazione Stile APA (7a Edizione)

Longo, D. L. (2012). Harrison's principles of internal medicine (18th ed.). McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

Longo, Dan L. Harrison's Principles of Internal Medicine. 18th ed. New York: McGraw-Hill, 2012.

Citatione MLA (9a ed.)

Longo, Dan L. Harrison's Principles of Internal Medicine. 18th ed. McGraw-Hill, 2012.