| APA | LOK. (2012, February 11). In Acronym Geek. Retrieved 06:45, February 11, 2012, from http://www.acronymgeek.com/LOK |
| MLA | "LOK." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/LOK>. |
| MHRA | 'LOK', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/LOK> [accessed 11 February 2012] |
| Chicago | "LOK", http://www.acronymgeek.com/LOK (accessed February 11, 2012). |
| CBE/CSE | LOK [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/LOK. |
| Bluebook | LOK, http://www.acronymgeek.com/LOK (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, LOK, http://www.acronymgeek.com/LOK (optional description here) (as of Feb. 11, 2012, 06:45). |
| AMA | LOK. Acronym Geek. February 11, 2012, 06:45. Available at: http://www.acronymgeek.com/LOK. Accessed February 11, 2012, 06:45. |