@inbook{6152228, author={Nancy Hamilton and Wendi Weimar and Kathryn Luttgens}, title={Chapter 19. Locomotion: Solid Surface}, booktitle={Kinesiology: Scientific Basis of Human Motion, 11e}, publisher={The McGraw-Hill Companies}, address={New York, NY}, year={2008}, url={accessphysiotherapy.mhmedical.com/content.aspx?aid=6152228} }