APA (7th ed.) Citation

SpringerLink (Online service), Swearingen, B., & Biller, B. M. K. (2011). Cushing's disease. Springer.

Chicago Style (17th ed.) Citation

SpringerLink (Online service), Brooke Swearingen, and Beverly M. K. Biller. Cushing's Disease. New York: Springer, 2011.

MLA (9th ed.) Citation

SpringerLink (Online service), et al. Cushing's Disease. Springer, 2011.