APA Style

Harrison`s Principles of internal medicine 18th ed vol.1. (2011). : .

Chicago Style

Harrison`s Principles of internal medicine 18th ed vol.1. NULL. : , 2011. Text.

MLA Style

Harrison`s Principles of internal medicine 18th ed vol.1. NULL. : , 2011. Text.

Turabian Style

Harrison`s Principles of internal medicine 18th ed vol.1. : , 2011. Print.