Longo, D. L. (2012). Harrison's principles of internal medicine (18th ed.). McGraw-Hill.
芝加哥风格引文Longo, Dan L. Harrison's Principles of Internal Medicine. 18th ed. New York: McGraw-Hill, 2012.
MLA引文Longo, Dan L. Harrison's Principles of Internal Medicine. 18th ed. McGraw-Hill, 2012.
警告：这些引文格式不一定是100％准确.