Joseph Glidden applies for a patent on his barbed wire design. (2013). The History Channel website. Retrieved 6:37, May 25, 2013, from http://www.history.com/this-day-in-history/joseph-glidden-applies-for-a-patent-on-his-barbed-wire-design.
Joseph Glidden applies for a patent on his barbed wire design. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/joseph-glidden-applies-for-a-patent-on-his-barbed-wire-design [Accessed 25 May 2013].
“Joseph Glidden applies for a patent on his barbed wire design.” 2013. The History Channel website. May 25 2013, 6:37 http://www.history.com/this-day-in-history/joseph-glidden-applies-for-a-patent-on-his-barbed-wire-design.
“Joseph Glidden applies for a patent on his barbed wire design,” The History Channel website, 2013, http://www.history.com/this-day-in-history/joseph-glidden-applies-for-a-patent-on-his-barbed-wire-design [accessed May 25, 2013].
“Joseph Glidden applies for a patent on his barbed wire design,” The History Channel website, http://www.history.com/this-day-in-history/joseph-glidden-applies-for-a-patent-on-his-barbed-wire-design (accessed May 25, 2013).
Joseph Glidden applies for a patent on his barbed wire design [Internet]. The History Channel website; 2013 [cited 2013 May 25] Available from: http://www.history.com/this-day-in-history/joseph-glidden-applies-for-a-patent-on-his-barbed-wire-design.
Joseph Glidden applies for a patent on his barbed wire design, http://www.history.com/this-day-in-history/joseph-glidden-applies-for-a-patent-on-his-barbed-wire-design (last visited May 25, 2013).
Joseph Glidden applies for a patent on his barbed wire design. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/joseph-glidden-applies-for-a-patent-on-his-barbed-wire-design. Accessed May 25, 2013.