Gaya APA

Longo, D, L, D. (2012). Harrison's Principles Internal Medicine Vol.2 (18th). Upper Saddle River, NJ: Sams.

Gaya MLA

Longo, Dan, L.,, Dkk.. "Harrison's Principles Internal Medicine Vol.2". 18th Upper Saddle River, NJ: Sams, 2012. Buku.