| APA | CLKE. (2012, February 14). In Acronym Geek. Retrieved 13:29, February 14, 2012, from http://www.acronymgeek.com/CLKE |
| MLA | "CLKE." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/CLKE>. |
| MHRA | 'CLKE', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/CLKE> [accessed 14 February 2012] |
| Chicago | "CLKE", http://www.acronymgeek.com/CLKE (accessed February 14, 2012). |
| CBE/CSE | CLKE [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/CLKE. |
| Bluebook | CLKE, http://www.acronymgeek.com/CLKE (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CLKE, http://www.acronymgeek.com/CLKE (optional description here) (as of Feb. 14, 2012, 13:29). |
| AMA | CLKE. Acronym Geek. February 14, 2012, 13:29. Available at: http://www.acronymgeek.com/CLKE. Accessed February 14, 2012, 13:29. |