Melvil Dewey was a librarian and scholar who developed the Dewey Decimal Classification system for cataloging books and other library materials.
Melvil Dewey. (2013). The Biography Channel website. Retrieved 09:04, May 25, 2013, from http://www.biography.com/people/melvil-dewey-9273516.
Melvil Dewey. [Internet]. 2013. The Biography Channel website. Available from: http://www.biography.com/people/melvil-dewey-9273516 [Accessed 25 May 2013].
"Melvil Dewey." 2013. The Biography Channel website. May 25 2013, 09:04 http://www.biography.com/people/melvil-dewey-9273516.
"Melvil Dewey," The Biography Channel website, 2013, http://www.biography.com/people/melvil-dewey-9273516 [accessed May 25, 2013].
"Melvil Dewey," The Biography Channel website, http://www.biography.com/people/melvil-dewey-9273516 (accessed May 25, 2013).
Melvil Dewey [Internet]. The Biography Channel website; 2013 [cited 2013 May 25] Available from: http://www.biography.com/people/melvil-dewey-9273516.
Melvil Dewey, http://www.biography.com/people/melvil-dewey-9273516 (last visited May 25, 2013).
Melvil Dewey. The Biography Channel website. 2013. Available at: http://www.biography.com/people/melvil-dewey-9273516. Accessed May 25, 2013.