References Maurice Wilkins Picture http://scarc.library.oregonstate.edu/coll/pauling/dna/pictures/portrait-wilkinsmodel.html Watson and Crick Picture http://www.chemheritage.org/discover/online-resources/chemistry-in-history/themes/biomolecules/dna/watson-crick- wilkins-franklin.aspx DNA Structure http://library.thinkquest.org/24355/data/details/media/dnastructure.html