APA Style

Wiener, C, M. et al (2012). HARRISON'S PRINCIPLES OF INTERNAL MEDICINE SELF - ASSESSMENT AND BOARD REVIEW (18th edn.). New York: McGraw Hill Medical.

MLA Style

Wiener, Charles, M.. et al. "HARRISON'S PRINCIPLES OF INTERNAL MEDICINE SELF - ASSESSMENT AND BOARD REVIEW". 18th edn. New York: McGraw Hill Medical, 2012. Text.