George A. Olah won the 1994 Nobel Prize for Chemistry for work he did in the1960s isolating carbocations, or positively charged hydrocarbon fragments.
George A. Olah. (2013). The Biography Channel website. Retrieved 08:35, May 22, 2013, from http://www.biography.com/people/george-a-olah-37443.
George A. Olah. [Internet]. 2013. The Biography Channel website. Available from: http://www.biography.com/people/george-a-olah-37443 [Accessed 22 May 2013].
"George A. Olah." 2013. The Biography Channel website. May 22 2013, 08:35 http://www.biography.com/people/george-a-olah-37443.
"George A. Olah," The Biography Channel website, 2013, http://www.biography.com/people/george-a-olah-37443 [accessed May 22, 2013].
"George A. Olah," The Biography Channel website, http://www.biography.com/people/george-a-olah-37443 (accessed May 22, 2013).
George A. Olah [Internet]. The Biography Channel website; 2013 [cited 2013 May 22] Available from: http://www.biography.com/people/george-a-olah-37443.
George A. Olah, http://www.biography.com/people/george-a-olah-37443 (last visited May 22, 2013).
George A. Olah. The Biography Channel website. 2013. Available at: http://www.biography.com/people/george-a-olah-37443. Accessed May 22, 2013.