| APA | CRKI. (2012, February 17). In Acronym Geek. Retrieved 01:38, February 17, 2012, from http://www.acronymgeek.com/CRKI |
| MLA | "CRKI." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/CRKI>. |
| MHRA | 'CRKI', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/CRKI> [accessed 17 February 2012] |
| Chicago | "CRKI", http://www.acronymgeek.com/CRKI (accessed February 17, 2012). |
| CBE/CSE | CRKI [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/CRKI. |
| Bluebook | CRKI, http://www.acronymgeek.com/CRKI (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CRKI, http://www.acronymgeek.com/CRKI (optional description here) (as of Feb. 17, 2012, 01:38). |
| AMA | CRKI. Acronym Geek. February 17, 2012, 01:38. Available at: http://www.acronymgeek.com/CRKI. Accessed February 17, 2012, 01:38. |