| APA | CKSU. (2012, February 16). In Acronym Geek. Retrieved 02:29, February 16, 2012, from http://www.acronymgeek.com/CKSU |
| MLA | "CKSU." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/CKSU>. |
| MHRA | 'CKSU', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/CKSU> [accessed 16 February 2012] |
| Chicago | "CKSU", http://www.acronymgeek.com/CKSU (accessed February 16, 2012). |
| CBE/CSE | CKSU [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/CKSU. |
| Bluebook | CKSU, http://www.acronymgeek.com/CKSU (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CKSU, http://www.acronymgeek.com/CKSU (optional description here) (as of Feb. 16, 2012, 02:29). |
| AMA | CKSU. Acronym Geek. February 16, 2012, 02:29. Available at: http://www.acronymgeek.com/CKSU. Accessed February 16, 2012, 02:29. |