"space, n.1." OED Online. Oxford University Press, March 2020. Web. 7 April 2020.

"space, n.1." OED Online, Oxford University Press, March 2020, www.oed.com/viewdictionaryentry/Entry/185414. Accessed 7 April 2020.

"space, n.1". OED Online. March 2020. Oxford University Press. https://www.oed.com/viewdictionaryentry/Entry/185414 (accessed April 07, 2020).