Irish revolutionary Eamon de Valera (1882-1975) was the head of Sinn Féin, and the third president of an independent Ireland.
Eamon de Valera. (2013). The Biography Channel website. Retrieved 11:48, May 25, 2013, from http://www.biography.com/people/eamon-de-valera-9273186.
Eamon de Valera. [Internet]. 2013. The Biography Channel website. Available from: http://www.biography.com/people/eamon-de-valera-9273186 [Accessed 25 May 2013].
"Eamon de Valera." 2013. The Biography Channel website. May 25 2013, 11:48 http://www.biography.com/people/eamon-de-valera-9273186.
"Eamon de Valera," The Biography Channel website, 2013, http://www.biography.com/people/eamon-de-valera-9273186 [accessed May 25, 2013].
"Eamon de Valera," The Biography Channel website, http://www.biography.com/people/eamon-de-valera-9273186 (accessed May 25, 2013).
Eamon de Valera [Internet]. The Biography Channel website; 2013 [cited 2013 May 25] Available from: http://www.biography.com/people/eamon-de-valera-9273186.
Eamon de Valera, http://www.biography.com/people/eamon-de-valera-9273186 (last visited May 25, 2013).
Eamon de Valera. The Biography Channel website. 2013. Available at: http://www.biography.com/people/eamon-de-valera-9273186. Accessed May 25, 2013.