MLA

Silver, Richard M, and Christopher P Denton. Case Studies In Systemic Sclerosis. Springer London, 2011.

APA

Silver, R. M, & Denton, C. P. (2011). Case Studies in Systemic Sclerosis. Springer London.

Chicago

Silver, Richard M., and Christopher P Denton. Case Studies In Systemic Sclerosis. : Springer London, 2011.