"J. Tuzo-Wilson: Discovering Transforms and Hotspots" USGS. N.p., 5 May 1999. Web. 20 November 2014.
pubs.usgs.gov/gip/dynamic/Wilson.html
"Plate Tectonics: The Main Features Are:" Earth Science from Moorland School. N.p, n.d. Web. 20 November 2014.
www.moorlandschool.co.uk/earth/tectonic.html
"Pictures, Animations, and Movies." Seafloor Spreading DEM. N.p., n.d. Web. 20 November 2014.
https://sites.google.com/site/seafloorspreadingdem/chapter-4
"Evidence for Seafloor Spreading." N.p., n.d. Web. 20 November 2014
http://www.phschool.com/iText/sci_exp/iText/products/0-13-181243-2/ch1/ch1_s4_3.html
"Notes for Plate Tectonics." Lansing, Kansas, 2014. Print.
pubs.usgs.gov/gip/dynamic/Wilson.html
"Plate Tectonics: The Main Features Are:" Earth Science from Moorland School. N.p, n.d. Web. 20 November 2014.
www.moorlandschool.co.uk/earth/tectonic.html
"Pictures, Animations, and Movies." Seafloor Spreading DEM. N.p., n.d. Web. 20 November 2014.
https://sites.google.com/site/seafloorspreadingdem/chapter-4
"Evidence for Seafloor Spreading." N.p., n.d. Web. 20 November 2014
http://www.phschool.com/iText/sci_exp/iText/products/0-13-181243-2/ch1/ch1_s4_3.html
"Notes for Plate Tectonics." Lansing, Kansas, 2014. Print.