Book content should be cited according to the American Medical Association's Manual of Style, 10th edition.

Here is an example:

Davis PJ. Special characteristics of pediatric anesthesia. In: Davis PJ, ed. Smith's Anesthesia for Infants and Children. 8th ed. Philadelphia, Pa: Mosby; 2011. Elsevier eBooks+. Available at http://www.insertURL. Accessed October 23, 2013.