Gaya APA

longo, D, L., Fauci, A, S. (2013). Harrison's : Gastroenterology And Hepatology (2). : McGrawHill.

Gaya MLA

longo, Dan, L., Fauci, Anthony, S.. "Harrison's : Gastroenterology And Hepatology". 2 : McGrawHill, 2013. Text.