APA Style

Colledge, N, R. et al (2010). Davidson's principles and practice of medicine : Principles and practice of medicine (21st ed.). Edinburgh ; New York: Churchill Livingstone/Elsevier.

MLA Style

Colledge, Nicki, R. et al. "Davidson's principles and practice of medicine : Principles and practice of medicine". 21st ed. Edinburgh ; New York: Churchill Livingstone/Elsevier, 2010. Text.