Gaya APA

Longo, D, L. et al (2012). Harrison's Principles of Internal Medicine (18th Edition (Volume 2)). New York: The McGraw-Hill Companies, Inc..

Gaya MLA

Longo, Dan, L.. et al. "Harrison's Principles of Internal Medicine". 18th Edition (Volume 2) New York: The McGraw-Hill Companies, Inc., 2012. Teks.