| APA | 121. (2012, February 10). In Acronym Geek. Retrieved 09:43, February 10, 2012, from http://www.acronymgeek.com/121 |
| MLA | "121." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/121>. |
| MHRA | '121', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/121> [accessed 10 February 2012] |
| Chicago | "121", http://www.acronymgeek.com/121 (accessed February 10, 2012). |
| CBE/CSE | 121 [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/121. |
| Bluebook | 121, http://www.acronymgeek.com/121 (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, 121, http://www.acronymgeek.com/121 (optional description here) (as of Feb. 10, 2012, 09:43). |
| AMA | 121. Acronym Geek. February 10, 2012, 09:43. Available at: http://www.acronymgeek.com/121. Accessed February 10, 2012, 09:43. |