First-ever electric guitar patent awarded to the Electro String Corporation. (2013). The History Channel website. Retrieved 10:35, May 25, 2013, from http://www.history.com/this-day-in-history/first-ever-electric-guitar-patent-awarded-to-the-electro-string-corporation.
First-ever electric guitar patent awarded to the Electro String Corporation. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/first-ever-electric-guitar-patent-awarded-to-the-electro-string-corporation [Accessed 25 May 2013].
“First-ever electric guitar patent awarded to the Electro String Corporation.” 2013. The History Channel website. May 25 2013, 10:35 http://www.history.com/this-day-in-history/first-ever-electric-guitar-patent-awarded-to-the-electro-string-corporation.
“First-ever electric guitar patent awarded to the Electro String Corporation,” The History Channel website, 2013, http://www.history.com/this-day-in-history/first-ever-electric-guitar-patent-awarded-to-the-electro-string-corporation [accessed May 25, 2013].
“First-ever electric guitar patent awarded to the Electro String Corporation,” The History Channel website, http://www.history.com/this-day-in-history/first-ever-electric-guitar-patent-awarded-to-the-electro-string-corporation (accessed May 25, 2013).
First-ever electric guitar patent awarded to the Electro String Corporation [Internet]. The History Channel website; 2013 [cited 2013 May 25] Available from: http://www.history.com/this-day-in-history/first-ever-electric-guitar-patent-awarded-to-the-electro-string-corporation.
First-ever electric guitar patent awarded to the Electro String Corporation, http://www.history.com/this-day-in-history/first-ever-electric-guitar-patent-awarded-to-the-electro-string-corporation (last visited May 25, 2013).
First-ever electric guitar patent awarded to the Electro String Corporation. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/first-ever-electric-guitar-patent-awarded-to-the-electro-string-corporation. Accessed May 25, 2013.