Doherty, Paul. "Science Wire from the Exploratorium and Public Radio International." Science Wire from the Exploratorium and Public Radio International. Web. 19 Apr. 2015.
Colavita, Jacob. "Physics of Surfing." Prezi.com. 10 May 2013. Web. 18 Apr. 2015.
image. Http://www.clipartpanda.com/clipart_images/surf-5634248. Web.
Mechanics of surfing (presentation) by Mike Grissom
Intro surfing waves by (presentation) by Paul Pascoe
Colavita, Jacob. "Physics of Surfing." Prezi.com. 10 May 2013. Web. 18 Apr. 2015.
image. Http://www.clipartpanda.com/clipart_images/surf-5634248. Web.
Mechanics of surfing (presentation) by Mike Grissom
Intro surfing waves by (presentation) by Paul Pascoe