| APA | 2N. (2012, February 10). In Acronym Geek. Retrieved 10:37, February 10, 2012, from http://www.acronymgeek.com/2N |
| MLA | "2N." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/2N>. |
| MHRA | '2N', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/2N> [accessed 10 February 2012] |
| Chicago | "2N", http://www.acronymgeek.com/2N (accessed February 10, 2012). |
| CBE/CSE | 2N [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/2N. |
| Bluebook | 2N, http://www.acronymgeek.com/2N (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, 2N, http://www.acronymgeek.com/2N (optional description here) (as of Feb. 10, 2012, 10:37). |
| AMA | 2N. Acronym Geek. February 10, 2012, 10:37. Available at: http://www.acronymgeek.com/2N. Accessed February 10, 2012, 10:37. |