Books, Brochures, and Chapters>Book:  Small , Meredith (1999-05-04), Our Babies, Ourselves: How Biology and Culture Shape the Way We Parent, Anchor, Retrieved on 2011-06-29

Audiovisual Media>Audio Recording:  Schute, Nancy (February 14, 2011), For Kids, Self-Control Factors Into Future Success, National Public Radio, Retrieved on 2011-03-01

Source Material [www.npr.org]