| APA | N.A.. (2012, February 15). In Acronym Geek. Retrieved 18:45, February 15, 2012, from http://www.acronymgeek.com/N.A. |
| MLA | "N.A.." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/N.A.>. |
| MHRA | 'N.A.', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/N.A.> [accessed 15 February 2012] |
| Chicago | "N.A.", http://www.acronymgeek.com/N.A. (accessed February 15, 2012). |
| CBE/CSE | N.A. [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/N.A.. |
| Bluebook | N.A., http://www.acronymgeek.com/N.A. (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, N.A., http://www.acronymgeek.com/N.A. (optional description here) (as of Feb. 15, 2012, 18:45). |
| AMA | N.A.. Acronym Geek. February 15, 2012, 18:45. Available at: http://www.acronymgeek.com/N.A.. Accessed February 15, 2012, 18:45. |