MLA

Rajesh, Arumugam, and Rakesh Sinha. Crohn's Disease. Springer International Publishing, 2015.

APA

Rajesh, A., & Sinha, R. (2015). Crohn's Disease. Springer International Publishing.

Chicago

Rajesh, Arumugam, and Rakesh Sinha. Crohn's Disease. : Springer International Publishing, 2015.