APA Style
Ralston, S, H. et al (2010).
Davidson's Principles & Practice of Medicine (21st edn.).
London:
Churchill Livingstone/Elsevier,.
MLA Style
Ralston, Stuart, H.. et al.
"Davidson's Principles & Practice of Medicine".
21st edn.
London:
Churchill Livingstone/Elsevier,,
2010.
Text.