APA Style

Colledge, N, R., Walkar, B, R. (2014). Davidson\'s Principles & Practice of Medicine (twenty two edition). Edinburgh, Scotland, UK: Churchill Livingstone / Elsevier.

MLA Style

Colledge, Nicki, R.., Walkar, Brain, R.. "Davidson\'s Principles & Practice of Medicine". twenty two edition Edinburgh, Scotland, UK: Churchill Livingstone / Elsevier, 2014. Text.