| APA | CRNL. (2012, February 12). In Acronym Geek. Retrieved 01:36, February 12, 2012, from http://www.acronymgeek.com/CRNL |
| MLA | "CRNL." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/CRNL>. |
| MHRA | 'CRNL', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/CRNL> [accessed 12 February 2012] |
| Chicago | "CRNL", http://www.acronymgeek.com/CRNL (accessed February 12, 2012). |
| CBE/CSE | CRNL [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/CRNL. |
| Bluebook | CRNL, http://www.acronymgeek.com/CRNL (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CRNL, http://www.acronymgeek.com/CRNL (optional description here) (as of Feb. 12, 2012, 01:36). |
| AMA | CRNL. Acronym Geek. February 12, 2012, 01:36. Available at: http://www.acronymgeek.com/CRNL. Accessed February 12, 2012, 01:36. |