| APA | 2A. (2012, February 10). In Acronym Geek. Retrieved 10:36, February 10, 2012, from http://www.acronymgeek.com/2A |
| MLA | "2A." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/2A>. |
| MHRA | '2A', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/2A> [accessed 10 February 2012] |
| Chicago | "2A", http://www.acronymgeek.com/2A (accessed February 10, 2012). |
| CBE/CSE | 2A [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/2A. |
| Bluebook | 2A, http://www.acronymgeek.com/2A (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, 2A, http://www.acronymgeek.com/2A (optional description here) (as of Feb. 10, 2012, 10:36). |
| AMA | 2A. Acronym Geek. February 10, 2012, 10:36. Available at: http://www.acronymgeek.com/2A. Accessed February 10, 2012, 10:36. |