| APA | CLKF. (2012, February 17). In Acronym Geek. Retrieved 06:38, February 17, 2012, from http://www.acronymgeek.com/CLKF |
| MLA | "CLKF." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/CLKF>. |
| MHRA | 'CLKF', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/CLKF> [accessed 17 February 2012] |
| Chicago | "CLKF", http://www.acronymgeek.com/CLKF (accessed February 17, 2012). |
| CBE/CSE | CLKF [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/CLKF. |
| Bluebook | CLKF, http://www.acronymgeek.com/CLKF (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CLKF, http://www.acronymgeek.com/CLKF (optional description here) (as of Feb. 17, 2012, 06:38). |
| AMA | CLKF. Acronym Geek. February 17, 2012, 06:38. Available at: http://www.acronymgeek.com/CLKF. Accessed February 17, 2012, 06:38. |