Work Cites

Hirsch, David. "Questia." FISHing for Information on Williams Syndrome May 1997: Vol. 27+. Book .

Marshall, Peter J. "Questia." Development of Social Engagement: Neurobiological Perspectives 2006: n. pag. Book.

Rice, Mabel L., and Steven F. Warren. "Questia." Developmental Language Disorders: From Phenotypes to Etiologies 2004: 1-428. Book.

"Williams Syndrome - Genetics Home Reference." U.S. National Library of Medicine. National Institutes of Health, n.d. Web. 03 Jan. 2017.

"Williams Syndrome." Healthline. N.p., n.d. Web. 03 Jan. 2017.