@inbook{3281316, author={James S. Walker, PhD and Howard B. Roback, PhD and Larry Welch, EdD}, editor={Ebert, Michael H. and Loosen, Peter T. and Nurcombe, Barry and Leckman, James F.}, title={Chapter 6. Psychological and Neuropsychological Assessment}, booktitle={CURRENT Diagnosis & Treatment: Psychiatry, 2e}, publisher={The McGraw-Hill Companies}, address={New York, NY}, year={2008}, url={accessmedicine.mhmedical.com/content.aspx?aid=3281316} }