MLA

Mueller, Ruediger, and Johannes Von Kempis. Clinical Trials In Rheumatology. Springer London, 2011.

APA

Mueller, R., & Von Kempis, J. (2011). Clinical Trials in Rheumatology. Springer London.

Chicago

Mueller, Ruediger, and Johannes Von Kempis. Clinical Trials In Rheumatology. : Springer London, 2011.