Peter Cooper was an American industrialist and inventor, best known for designing and building the first steam locomotive in the United States.
Peter Cooper. (2013). The Biography Channel website. Retrieved 06:17, May 21, 2013, from http://www.biography.com/people/peter-cooper-9256733.
Peter Cooper. [Internet]. 2013. The Biography Channel website. Available from: http://www.biography.com/people/peter-cooper-9256733 [Accessed 21 May 2013].
"Peter Cooper." 2013. The Biography Channel website. May 21 2013, 06:17 http://www.biography.com/people/peter-cooper-9256733.
"Peter Cooper," The Biography Channel website, 2013, http://www.biography.com/people/peter-cooper-9256733 [accessed May 21, 2013].
"Peter Cooper," The Biography Channel website, http://www.biography.com/people/peter-cooper-9256733 (accessed May 21, 2013).
Peter Cooper [Internet]. The Biography Channel website; 2013 [cited 2013 May 21] Available from: http://www.biography.com/people/peter-cooper-9256733.
Peter Cooper, http://www.biography.com/people/peter-cooper-9256733 (last visited May 21, 2013).
Peter Cooper. The Biography Channel website. 2013. Available at: http://www.biography.com/people/peter-cooper-9256733. Accessed May 21, 2013.