Gaya APA

Fauci, A, S., Kasper, D, L. (2015). Harrison's Principles of Internal Medicine Volume 2 (19). USA: Mc Graw Hill.

Gaya MLA

Fauci, Anthony, S.., Kasper, Dennis, L.. "Harrison's Principles of Internal Medicine Volume 2". 19 USA: Mc Graw Hill, 2015. Text.