MLA

Geboes, Karel, et al. Colitis. Springer International Publishing, 2014.

APA

Geboes, K., Nemolato, S., Faa, G., & Leo, M. (2014). Colitis. Springer International Publishing.

Chicago

Geboes, Karel, Sonia Nemolato, Gavino Faa, Gavino Faa, Maria Leo, and Maria Leo. Colitis. : Springer International Publishing, 2014.