| APA | 2K. (2012, February 10). In Acronym Geek. Retrieved 09:41, February 10, 2012, from http://www.acronymgeek.com/2K |
| MLA | "2K." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/2K>. |
| MHRA | '2K', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/2K> [accessed 10 February 2012] |
| Chicago | "2K", http://www.acronymgeek.com/2K (accessed February 10, 2012). |
| CBE/CSE | 2K [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/2K. |
| Bluebook | 2K, http://www.acronymgeek.com/2K (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, 2K, http://www.acronymgeek.com/2K (optional description here) (as of Feb. 10, 2012, 09:41). |
| AMA | 2K. Acronym Geek. February 10, 2012, 09:41. Available at: http://www.acronymgeek.com/2K. Accessed February 10, 2012, 09:41. |