Biafra surrenders to Nigeria. (2013). The History Channel website. Retrieved 1:37, May 25, 2013, from http://www.history.com/this-day-in-history/biafra-surrenders-to-nigeria.
Biafra surrenders to Nigeria. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/biafra-surrenders-to-nigeria [Accessed 25 May 2013].
“Biafra surrenders to Nigeria.” 2013. The History Channel website. May 25 2013, 1:37 http://www.history.com/this-day-in-history/biafra-surrenders-to-nigeria.
“Biafra surrenders to Nigeria,” The History Channel website, 2013, http://www.history.com/this-day-in-history/biafra-surrenders-to-nigeria [accessed May 25, 2013].
“Biafra surrenders to Nigeria,” The History Channel website, http://www.history.com/this-day-in-history/biafra-surrenders-to-nigeria (accessed May 25, 2013).
Biafra surrenders to Nigeria [Internet]. The History Channel website; 2013 [cited 2013 May 25] Available from: http://www.history.com/this-day-in-history/biafra-surrenders-to-nigeria.
Biafra surrenders to Nigeria, http://www.history.com/this-day-in-history/biafra-surrenders-to-nigeria (last visited May 25, 2013).
Biafra surrenders to Nigeria. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/biafra-surrenders-to-nigeria. Accessed May 25, 2013.