The first Sony Walkman goes on sale. (2013). The History Channel website. Retrieved 9:15, May 22, 2013, from http://www.history.com/this-day-in-history/the-first-sony-walkman-goes-on-sale.
The first Sony Walkman goes on sale. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/the-first-sony-walkman-goes-on-sale [Accessed 22 May 2013].
“The first Sony Walkman goes on sale.” 2013. The History Channel website. May 22 2013, 9:15 http://www.history.com/this-day-in-history/the-first-sony-walkman-goes-on-sale.
“The first Sony Walkman goes on sale,” The History Channel website, 2013, http://www.history.com/this-day-in-history/the-first-sony-walkman-goes-on-sale [accessed May 22, 2013].
“The first Sony Walkman goes on sale,” The History Channel website, http://www.history.com/this-day-in-history/the-first-sony-walkman-goes-on-sale (accessed May 22, 2013).
The first Sony Walkman goes on sale [Internet]. The History Channel website; 2013 [cited 2013 May 22] Available from: http://www.history.com/this-day-in-history/the-first-sony-walkman-goes-on-sale.
The first Sony Walkman goes on sale, http://www.history.com/this-day-in-history/the-first-sony-walkman-goes-on-sale (last visited May 22, 2013).
The first Sony Walkman goes on sale. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/the-first-sony-walkman-goes-on-sale. Accessed May 22, 2013.