| APA | CROK. (2012, February 17). In Acronym Geek. Retrieved 01:24, February 17, 2012, from http://www.acronymgeek.com/CROK |
| MLA | "CROK." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/CROK>. |
| MHRA | 'CROK', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/CROK> [accessed 17 February 2012] |
| Chicago | "CROK", http://www.acronymgeek.com/CROK (accessed February 17, 2012). |
| CBE/CSE | CROK [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/CROK. |
| Bluebook | CROK, http://www.acronymgeek.com/CROK (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CROK, http://www.acronymgeek.com/CROK (optional description here) (as of Feb. 17, 2012, 01:24). |
| AMA | CROK. Acronym Geek. February 17, 2012, 01:24. Available at: http://www.acronymgeek.com/CROK. Accessed February 17, 2012, 01:24. |