APA Style

Kasper, D, L. et al (2015). HARRISON'S PRINCIPLES OF INTERNAL MEDICINE (19th edn. vol-1). London: McGraw Hill Pub.

MLA Style

Kasper, Dennis, L.. et al. "HARRISON'S PRINCIPLES OF INTERNAL MEDICINE". 19th edn. vol-1 London: McGraw Hill Pub, 2015. Text.