APA (7th ed.) Citation

ScienceDirect (Online service), Rakel, R. E., & Rakel, D. (2011). Textbook of family medicine (8th ed.). Elsevier/Saunders.

Chicago Style (17th ed.) Citation

ScienceDirect (Online service), Robert E. Rakel, and David Rakel. Textbook of Family Medicine. 8th ed. Philadelphia: Elsevier/Saunders, 2011.

MLA (9th ed.) Citation

ScienceDirect (Online service), et al. Textbook of Family Medicine. 8th ed. Elsevier/Saunders, 2011.