| APA | KEYS. (2012, February 14). In Acronym Geek. Retrieved 21:20, February 14, 2012, from http://www.acronymgeek.com/KEYS |
| MLA | "KEYS." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/KEYS>. |
| MHRA | 'KEYS', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/KEYS> [accessed 14 February 2012] |
| Chicago | "KEYS", http://www.acronymgeek.com/KEYS (accessed February 14, 2012). |
| CBE/CSE | KEYS [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/KEYS. |
| Bluebook | KEYS, http://www.acronymgeek.com/KEYS (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, KEYS, http://www.acronymgeek.com/KEYS (optional description here) (as of Feb. 14, 2012, 21:20). |
| AMA | KEYS. Acronym Geek. February 14, 2012, 21:20. Available at: http://www.acronymgeek.com/KEYS. Accessed February 14, 2012, 21:20. |