APA Style

Fauci, A, S., Braunwald, E. (2008). Harrison's Principles of Internal Medicine vol. I (17th ed). New York: McGraw-Hill Information Services.

MLA Style

Fauci, Anthony, S.., Braunwald, Eugene. "Harrison's Principles of Internal Medicine vol. I". 17th ed New York: McGraw-Hill Information Services, 2008. print.