APA Style

R, H., Gray, D. (2010). Chamberlain's symptoms and signs in clinical medicine : an introduction to medical diagnosis (13th ed.). London: Hodder Arnold.

MLA Style

R, HoughtonAndrew., Gray, David,. "Chamberlain's symptoms and signs in clinical medicine : an introduction to medical diagnosis". 13th ed. London: Hodder Arnold, 2010. Text.