APA (7th ed.) Citation

ScienceDirect (Online service), Gearhart, S. L., & Ahuja, N. (2010). Colorectal cancer. Saunders/Elsevier.

Chicago Style (17th ed.) Citation

ScienceDirect (Online service), Susan L. Gearhart, and Nita Ahuja. Colorectal Cancer. Philadelphia: Saunders/Elsevier, 2010.

MLA (9th ed.) Citation

ScienceDirect (Online service), et al. Colorectal Cancer. Saunders/Elsevier, 2010.