Bibliography

http://www.webmd.com/parenting/guide/recognizing-developmental-delays-your-child-ages-3-5?page=3

http://www.med.umich.edu/yourchild/topics/devdel.htm

http://www.webmd.com/parenting/baby/recognizing-developmental-delays-birth-age-2

http://nichcy.org/disability/specific/dd

http://learningdisabilities.about.com/od/glossar1/g/develdelay.htm