South African History Online. (2017, May 2). Mark Shuttleworth speaks to the president – from space. South African History Online. https://sahistory.org.za/ref/E-0123255
South African History Online (2017) 'Mark Shuttleworth speaks to the president – from space', South African History Online, 2 May. Available at: https://sahistory.org.za/ref/E-0123255 (Accessed: 11 November 2026).
South African History Online, Mark Shuttleworth speaks to the president – from space [website], https://sahistory.org.za/ref/E-0123255, (accessed 11 November 2026).
"Mark Shuttleworth speaks to the president – from space." South African History Online, 2 May 2017, https://sahistory.org.za/ref/E-0123255. Accessed 11 Nov. 2026.
South African History Online. "Mark Shuttleworth speaks to the president – from space." South African History Online. May 2, 2017. https://sahistory.org.za/ref/E-0123255.